my two favorite faces and ones I use almost too much

curiosity/intreague
^^; cheerful with slight concern
^^;;; (same as above, but more ";" means more concern XD)
XD some people I hear use that as kinda a giggle face, but I use it more like a shocked or omg expression <_<
<_< this is what I use for when I'm thinking, but not speaking. very useful if someone said something that can be understood multiple ways, and you wish to refrain from outright speaking them.
m(_ _)m appologetic face.
^^v "V" for victory, or peace sign. ^^
^^b giving a up ^^;
~.~ tired, sad, or just overall not in a pleasant mood (but not angry)
-.- angry/annoyed face
-. - annoyed/suspicious face
>< the "Oh 'darn'" face
O.< the ouch face
^.~ wink
I'm sure I could stop and think of many many more, but I won't take all the fun from everyone XD but those are the ones me and my friends use most often and how we interperite them (atleast from each other).