He has that expression because Kakashi is patting his head (it's hard to see his hand) and he's nervous. Who wouldn't be if their sensei was hitting on them? hehe

i think it looks adorable, but what's with sasuke's expression? its kinda weird cuz sasuke is usually all emo and stuff. no offense to any sasuke fans or anything.

nice!! ^-^ i like your lineart! Akatsuki Elite Member: Ichati