Post in the comments your reason to smile and I will copy them down here.
Credit will be given in the project.
Reasons to smile 50/50
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@Jazzscratch50: Smile because no one is stopping you :D
@YoshiCreations: A smile is the prettiest thing you can wear
@willow-dragon: Smile to cheer yourself up? (I always feel happier when I'm smiling! :D)
@pawspaws45: smile so others have no reason to be sad!
@Big-Boy-Toys_Bacon: smile all the time it makes you look better!
@JTheGamer: Smile because someone will always love you when you feel depressed.
@spaghetti9: SMILE BECAUSE #1 ISAID SO #2 BECAUSE IT"S FUN!!!!!!
@LittleMissFriendly: Smile because you're awesome. :)
@Pierceawesomeness: You can smile because that's the 2nd biggest reason your mouth is for :)
@robotboy9: A reason to smile is because smiling at others can make them smile
@Angelflower0_test: Smile because you have a mouth. Be thankful about that xD
@GOOFYMOUSE: Smile because ......why not? :D
@IrishGator9: Smile because you know you can accomplish anything!!! :D
@GOOFYMOUSE: Your a star. And if you smile you'll be the brightest! ~Me
@Light-shadow-the-wc: smile becuz i said =)! DO IT Now ><!!!!!!
@janecrane: smile because it makes others happy,it makes everyone happy
@warriorcats334:Smile because you should. If you can't smile, what's the point anyways?
@azzt2: Smile because what can go wrong?
@catzrawesome77: Smile because no matter what can go wrong, something good can come out of it and you are able to stay strong no matter what.
@awesomekid0224: Smile because you're awesome and nothing can change that.
@7puppies: Smile because of butterflies, summer, falling leaves, rainbows, kindness, imagination, waterfalls, fireflies, snow, flowers, muffins, rain, crayons, trees, smiley faces, rocks, tree houses, art, cookies, games, numbers, glitter, rabbits, dogs, history, time, purple, books, cats, red, dance, librarians, blue, cheese, green, tapirs, llamas, whales, computers, postcards, rope swings, music and friends. As well as everything else in the world that is wonderful.
@TroyTulowitzki2: Smile cause God created you and put you on Earth.
@worldof: Smile cause some thing is going to happen
@brokenskeleton: Smile because you have a chance
@mohitofpokemania: smile because its easier to do then frowning.
@TomboyChick529: There are millions of reasons to smile! I smile all the time! Sometimes for no reason at all! Do you need a reason to be sad? Yes. Do you need a reason to be happy? Nope.
@IvyXDlifeisgood: Smile because your on Scratch
@brokenskeleton: Smile because whats a mouth for anyway?(:
@Symphony5: Stay happy by smiling and spread it around to make others smile!!
@UnknownMustache: Smiles make the world go round and without them life would be a depressed place of alienated people who know nothing better.
@redroserosa: when life gives u a hundred reasons to cry,show life u have a thousand reasons to smile :)
@redroserosa: dont make the world change ur smile , make ur smile change the world
@redroserosa: smile cuz it suits u :)
@Melrose123: Smile because it doesn't cost anything and you can't buy it either.
@AgentRoopAssistant: Smile because donut
@rosecraft: Smile because its harder to frown then laugh
@rosecraft: No one likes a grump so smile:)
@Herobrines_doggie: It takes more muscles to frown then smile. Smiling refines your personality! :)
@_ChiliStar_: A smile is the most beautiful curve on a girl's body. :) Plus, SUNNY DAYS AND PUPPIES AND KITTIEZ!!!! >w<
@17ARico: you should smile because you get to see another day :)
@purplemoondust: Smile because you are smart and beautiful.. Your never fully dressed without a smile!!!
@braintrainer: Smile because your smile will light up the sky and turn rain to sunshine!
@Pokemon_trainer333: smile because its awesome
@buttersteve: smile because you know you're worth it ;D
@maymaywolf1: smile cause minions
@TaxingOpossum88: Smile because there's always at least one person who loves you
@Yssebairgue: Smile because it will cheer you up in any case :))
@frillix: Smile because maybe when you do you will make the atoms and molecules that make up your smile happy and they will do a happy dance. And then the movement from their happy dance will start spreading other molecules and this train of dancing molecules will spread all the way to a dirty river in Africa and the happiness will be so powerful that it makes dirt go away and now those families on the river can have access to clean water. You never know, it might happen...(୨୧ ❛ᴗ❛)
@BAYLEECAT: smile cause you are one of a kind and you are someone to yourself!
@Missvideo: Smile because you have peace in your life and there is always someone there for you wherever you are
Thanks @GreenIeaf for the idea of the layout :)