The anime (Anime = Japanese style cartoon) version of the normal smiley, :) You'll notice this kind of smiley in most japanese cartoons, when when character is happy his/her eyes will change to ^'s and the mouth usually a small dot for a smile, or a normal smile.
Omg Katie kissed me yestersday @@@@@@@@@@@@@@@ ^.^ ^_^ ^.^
An ascii face or emotion icon used to describe happiness, or contentness. The "^"'s are the eyes, and the dot it a nose. It's often used by asians or anime fans.
"I love you ^.^"