There’re several symbols ponies use so there is no shame not knowing this one.
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The song is always Smile, Smile, Smile!…Always.
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This is your brain on puns.
pun, not even once.
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I can see the practicality in this.
Aurora: Aren’t I sleeping right now?
Ace: Tumblr magic.
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Now if I only could make myself actualy read the books instead of practicing my balance I might get somewhere.