Little faces that cna be made by clcicking shift and using the number keys above letters on key board.
^-^ = happy other forms ^.^ ^^ ^_^
O_O = shocked, omg, kinda thing other forms O_o O.o O.O o.o
._. = another form of O_O only a little stronger
-_- = annoyed, ugh, oh boy other forms -.- -_-; -_-'
-_-; O_o' ^-^' = extra things showed here are sweat marks meaning thing that shock and or embarras one.