There are five different categories of smileys:
Basic Emotions - happy, sad, mad...the simple ones
Extra Emotions - hugs, love, evil and the deeper ones
Nature & Mystic - kind of anything earth-related like plants, animals, sun, moon, nature beings, etc
Word & Symbol - signs, symbols, greetings, hand gestures and anything universally recognised to stand for an idea or thing
Misc - …
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