o.o : blank stare, as in "You've just lost me" Or "I care about this...Why, again?"
O.o ; o.O : Confusion, usually used together.
O.O : Suprise, shock.
Person: (insert technical jargon here)
Person: and because of this, such evented happened, at such time, for such reason.
Person: You get it now?
Me: That was supposed to be helpful?
Person: (I'm blank on ideas, but anything that would suprise me)
Girl: *sobs* I broke up with Tony!
Friend: Oh, my gosh! What happened?
Girl: I found him kissing another guy!
Friend: o.O... O.o
Boy: I heard that they're going to take all the good channels off the air like the movie channels and such.