how would you know if a guy likes you?

[precious6566]

i stay across from a guy around my age, he always have a big smile on his face when he see's me and he watches me walk away until he cant see me anymore! im in college so i acted as if i didnt know a question on my homework paper and i knocked on the door to see if he could explain it to me, he told me to keep the paper there and he'll go over it to see if he knows any of it, when he brought it back the whole thing was done and he smiled and said now tell me what you get on it, do you think he likes me?!

[slayer_gurl8880512]

facial expressions, like this guy./.