It means he likes you more than he likes himself.
Sounds like he is shy. Scared she might catch him looking at her.
Yes, you bet!
he likes you he likes you he likes you!
He's probably checking you out, and is just shy.
Does he look away right away when you look back at him?
If you like him back, I'd say just go up to him and say hi, or even just a short conversation. If he's shy or if he does like you, then it will really build up his confidence and he'll start approaching you more often.
Yeah, he's totally checking you out. Up and down? It's the classic damn-she-looks-fine-wish-she-was-mine check-out.
he wants your vag.