Call it a smiley or emoticon. Here’s a communication expressing shock, puzzlement, misunderstanding, raised eyebrow, and skepticism in online chatting, e-mail and Facebook communications, etc. Other variations … o.o, O.O, O.o, or o.O o.o , o.O , O.o , o_o , o_O , O_o , 0.o , o.0 , o_0 , 0_o , 0.0 , [...]