[Sylos]

Emoji are the images that you often see spammed all over the place: , , , , , ... And "Emoji" is actually plural. "Emojis" is sometimes used as plural, but it's actually wrong.

Emoticons are then usually made up out of multiple ASCII-symbols, although general Unicode is by now also in use: :), :-), :|, :[ ...

And then for the "ㄟ(ツ)ㄏ"-Emoticon, you can get more specific about it and call it "Kaomoji". Kaomoji are not Emoji, even though the two sound related, and are actually a more horizontal style of Emoticons, so basically any Emoticon which you can read without turning your head: ㄟ(ツ)ㄏ, ^^, (っ´▽`)っ, (╯°□°)╯︵ ┻━┻, ఠ_ఠ ...