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All right now let's take a look at bump maps.

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So first of all let's save our projects a file save as and I'm going to save it as project too.

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Now as we just explained in the previous tutorial the note editor is really awesome and right here we

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have what are called nodes which you could right click to select them and another little cool trick.

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I want to show you with the node Ed. is that if you select your node and hit em it will actually mute

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it out so you could see what it looks like without that node in place.

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So you actually don't have to delete it.

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Right now it's actually showing us what our plane looks like with just the diffuse texture or the diffuse

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material and no longer the image texture.

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Now let's jump into but maps what are bought maps well but maps and we're actually going to go into

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specular maps as well in the future Tauriel possibly or in this one.

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But but maps are basically image textures that allow for you to add a lot of detail so we could see

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right here.

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And let me get a different light so that's lit a little bit better.

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Let's select the lab right here in our outliner and let's change it to sun.

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Now going back to our plane you can see that it looks great but it looks a little bit flat.

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I mean what about all these all this detail on the wood floor that we're missing all the crevices and

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all the razors and all the bumps and all the dance and all that.

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It all looks just a little bit flat.

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You know we don't have all that detail of the wooden floor because if we look at our mesh it's just

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a flat mesh.

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So one way we could add the detail is hitting tab to go into edit mode and W and subdividing this like

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crazy and then going in there and bringing this down you know for the crevices and adding in the bumps

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and the raises one by one or doing it in a way where we can actually do it faster.

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Now one by one but we would still have a lot of geometry or vertices on our plane.

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Now like I said before we want to have we want to achieve the best result that we can with the least

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amount of vertices possible.

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So could you imagine if I told you that there's a way to actually have this much detail of our wood

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floor while still keeping one two three four vertices.

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Well there is.

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And that's what a button map does.

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It's going to basically give the illusion or it's going to manipulate the light so that it looks like

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there's raises crevasses dents and bumps on our wooden floor.

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So that gives it that extra detail basically by manipulating the light of our scene.

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So let's go ahead and do that and we're going to have fun with this.

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It's going to look pretty cool once we do it and really easy to do.

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All we have to do is go to photo editing program such as GIMP which is free or Photoshop.

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Now personally I don't use Photoshop because I'm used to it.

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But you can use Gimp as these are be very simple steps that we're going to do right here now.

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Yes.

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I know I'm still racking Photoshop 7.

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I know I know it's it's terrible.

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And I will update soon I promise.

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But it gets the job done for me.

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And so for now I'll just I'll just deal with it.

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You could shame me if you want to get your photoshop hopefully not Photoshop 7 and or Gamp and open

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up your image textures.

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Go to open let's find wherever you have your image texture.

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All kinds of stuff everywhere.

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And go ahead and open up your image texture.

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Now all we have to do is convert it to black and white so go to image adjustments and I'll explain why

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in a second go to grayscale and click OK.

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The reason we want to convert it to black and white is because any black spot or any black part on the

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image such as here will act as a crevice or will act as a value on our on our object any white spot

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or any spot that has that.

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Yeah.

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And then he spot that white will act as a hill or act as a bump to it.

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Anything that Gray will be neutral and will be flat.

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So let's go ahead and exaggerate this little bit by going image adjustments image adjustments no mode

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image mode.

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Where is.

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Image adjustments brightness contrast.

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Wow.

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It was eluding me.

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Let's bring the contrast up a little bit.

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And you know not everyone is perfect all right.

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All right.

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I I forget where some things might be as well.

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So let's bring up the contrast and now we really get it's where the the the crevices are going to be.

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So all the black and all the white is where the buns are going to be.

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So that was pretty cool.

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And let's go ahead and hit.

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OK File Save As.

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I want to name this bump

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would underscore floor underscore bump.

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And I'm going to save it as a PMG as I like that format.

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The best hit.

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OK.

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And go back into blender now.

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All we have to do is select this image texture or this image no texture should I say Shiff d to duplicate

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it and then hitting the x key right here.

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We're going to remove this and we're going to load in our bomp texture.

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Now before we do that I want to do one other thing as well.

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Remember how I said before the mixed node or the mix shader is very useful.

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We can mix a diffuse and a glossy.

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So we're going to do just that here as well because for the most part a wood floor depending on how

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use it is of course we might have some shine to it.

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You know it depends if has some varnish or not.

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If it's a beach wood floor there might not have really any shine.

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But usually it has even just the slightest bit of shine.

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So we're going to do just that.

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And again we could do that via here but we're going to be using the note editor so let's do it here.

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And actually gets pretty a lot easier doing it here because you can see your workflow.

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It's streamlined it's easier to see them.

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All this over here which is kind of stacked on top of each other.

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So let's go ahead and head chef de Let's go to Shater and let's add a glossy Shater now that we have

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that let's go to shift a again Shater and we're going to add in a mix shader over here drop it in here

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and then connect the glossy Shater to the bottom of the mix Shater.

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Awesome.

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So now you see our wood floor looks terrible.

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That's exactly the look I was going for.

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Not really.

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But now what we're going to do is we're basically going to connect first of all let's connect the image

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texture to our glossy text or to our glossy Shater already looks a little bit better.

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And now let's go ahead and take a look at this bug map that we created.

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So in order to put this as a bump texture on our material all we have to do is hit shift day go to Vektor

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and select bomp put it in between their left click the color.

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Let me zoom in a little bit so you guys can see better.

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I'm always thinking about you guys.

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Select the color by left clicking and bring it into the height and then take the normal right here and

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bring it into the normal of the first list to the diffuse bring into the normal of the diffuse and boom

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right away you can see the detail that's been added.

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Let's increase this distance right here and you could see even more the amount of detail that's been

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added.

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I mean just select the image of the normal map image no right here and hit.

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And you can see the difference that there is you can see all the detail what you can see all the detail

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that we have here with the bump node.

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Let's go ahead and connect into the glossy as well.

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And now you can see really what's happening.

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So let's bump down the distance back down.

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Let's put it let's put it to point one is a bit much so as for it to point zero five I'm even going

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to put it down a little bit more.

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Point 0 3.

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All right.

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Awesome.

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So look at that only for the 30 C's but look at how cool that looks.

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That is pretty awesome.

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Now it's like the image texture hit em to delete or to mute it.

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You can see the huge difference this is before after.

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How cool is that.

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So that is what a bump map is a bump map basically gives you the illusion of having extra detail on

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here.

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This is still a single plane with four vertices but we can see that it's added in a lot of detail or

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we think it has a really it's just playing with the lighting of our scene and giving us the illusion

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of that.

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So pretty pretty cool.

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It looks awesome.

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Now in the next tutorial we're going to quickly take a look at specular maps and be adding this to our

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composition over here because we can still improve this a little bit.

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So let's go ahead and hop on over to the next Tauriel.

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But again that's bomp mapping.

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It's really awesome you can do this for any kind of texture so if you have gravel or wood floor Anything

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that needs extra detail but you don't want to add it by subdividing your mesh or adding in a lot of

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geometry.

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You can use a bump map and it's really really awesome.

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Now again let me put this in there too.

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A bump map is used for it's really useful for things when they're flatter Obviously you can't use a

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bump map if you have let's say you have something like rocks let's say like actual actual rocks that

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stick up from the floor.

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You can't use a button map for to give the illusion that there's going to be rocks unless it's very

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far away because as soon as you go here the rocks you're the rocks will be completely flat for rocks

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you're going to have to have actual geometry that sticks out of your plane to give it that 3-D feel.

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But as far as these little crevices you could see that the more level I get with the plane you could

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actually see that you can't really see the bumps or the crevasses actually looks kind of flat from here.

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So as long as the view is from this angle or from the top or really any angle even if it's sliding across

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the floor it looks good.

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But a bump map is usually used to add detail to a flattened surface or to something that doesn't need

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actual geometry like again gravel.

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You wouldn't add a bump map you would add a gravel texture and then add a bump map to that gravel to

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make it look like the gravel is actually sticking out because if you were to go down you would then

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on your animation you would then see that there's no gravel at all and it's just an image texture.

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But again for wood floors for sand for grass not grass for.

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Depends what kind of grass for wood floors for for sand for dirt you know bedsheets would even carpet

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sometimes the walls.

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You know the walls of your house are a little bit bumpy so any of that but naps are great.

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So I think I've driven that point home enough.

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Let's get to the next tutorial and check out specular maps.

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See there.

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All right all right all right.

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Let's finish off in a positive way.

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In the end how will people remember you.

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It's all about what you got what you gave.

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You'll realize that people say this person impacted me in a positive way.

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You see we all leave behind a memory in people's heart and in their mind.

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So always remember be happy be giving and be kind.

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So always ask yourself remember.

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People don't care what you do or what you say but to always remember how you made them feel.

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So I'll see you in the next video.

