Does he know that you like him? Guys usually ALWAYS look at the girl who likes them (as to my own personal experience). I don't know, it's just something in them that always makes them look back at the girl who likes him. But that doesn't mean he likes you back, just to let you know. I don't want you to fall into the same delusional trap I did previously, thinking my crush must like me back because he's looking at me. But...nope! Not at all. He ended up asking other girls out in the end and I ended up broken-hearted, hahahaha! Also, IF he happens to like you back and he's the shy type of guy, he will pretend to look away when you turn to look at him because he doesn't want you to catch him looking at him.
Why Does My Crush Stare At Me My Friend Noticed It And When Ever I Turn Around He Faces The Other Direction?
Maybe he likes you but dosn't want you to know.maybe try ask him. You'd never know he might ask you to dinner or to a movie!