You be yourself while making some kind of conversation with him... then if he asks you out then you know he likes you or else there's a big problem...
The only way your going to know if this guy likes you is ask him.
If it before school or class.
You know if he likes you because he would give you hints that he likes you in the hallway or after/before school, or he would ask you out.
He will like your statuses on facebook.
Ask him it's not like you see him everyday so it won't be awkward if he says no
Well you will know because he messes with you abunch. He stares at you in class, and he tries to get your attenton abunch.
if a guy likes you then he will mess with you in class hug you alot have a grin on his face when he sees you he will think about you and notice the way he talks to other girls if he talks to you in a different way he totally likes you
iam in love with this guy but i do not know if he likes me or some other girl
If a guy likes you but you don't know him he may look at you or walk by you whenever possible.
when he says he likes you.
http://www.wikihow.com/Know-if-a-Guy-Likes-You
No it means he's nosy and wants to know who it is!