Does my crush likes me back?

there's a guy in my homeroom cl and sometimes he'll look at me when i'm not looking at him (when i'm really am) and we don't know each other but my friend knows him. Here's some moments: yesterday, we were sitting and there's two sides in the cl nd we could'nt see each otha becuz of a girl in front of me and he looked all the way to the side of his desk nd look straight at me. Another moment is when i was laughing with a friend and i looked to the side nd dere he is looking at me smiling at me too nd ingoring the girl that's talking to him. Another moment is when i was walking nd i saw him talking to my old former friend (boy) nd a other guy nd wen i p dem slowly they looked at me nd stopped talking.Another moment is when i was sitting nd i turned arund nd see him staring at me and den he looked away. Help?