If a guy always looks at you does that mean he likes you?

Its possible yes

but if he only stares at you and that's it its most likely its something else

the boy would try to make convosation and stuff liek that as well

ask him whats his deal,

maybe he'll confees he likes you

Depends on how he is looking at you. Was he looking at your body? If he he was he probably thinking about sex.