I have a question guys what exactly does this mean? :x
I see it and use it often though it seems to be rather ambiguous as to the meaning.
I'll just list some of the ones I use
I use :x and D: in situations that they don't belong in simply because they are fun to use for me.
For me, :x is basically shutting up / speechless / quiet / shy / embarrassed etc
D: is just a playful sad
._. is like your head is looking down, shame I guess?, never really serious though lol
.-. is peeking and/or hiding for me
/o/ and \o\ are basically throwing your arms in the air cheering
I don't really do traditional ones like :) unless I'm writing something up, ^^ can mean the same thing, but I prefer just normal smile.
~.~ is aggravated / frustrated / tired / etc
-.- angry face! D:
um... idk if I use others, I'm sure I do