Leo Broukhis responded to William Overington: >> I decided that trying to design emoji for 'I' and for 'You' seemed >> interesting so I decided to have a go at designing some. > > Why don't we just encode Blissymbolics, where pronouns are already > expressible as abstract symbols, and emojify them?
Emoji enthusiasts seeking to devise a universal pictographic set might be well-advised to build from existing work such as Blissymbolics. I think William Overington's designs are clever, though. Anyone who has ever studied a foreign language (or even their own language) would easily and quickly recognize the intended meanings of the symbols once they understand the derivation.

