Just ask he may or may not like you but he might be lying but tell him to tell the truth.
if he notices that he keeps eyeing you and checking you out
ask his mate to ask him if he likes yhoo then yhoo will know
If he likes you but his mate likes you and you like his mate, then it's going to be hard on him. But telling everyone is just a stupid thing to do! It shows how immature boys can be.
It is ok to like a guy after you know he likes you. That is perfectly normal and a part of life.
If a guy likes you but you don't know him he may look at you or walk by you whenever possible.
Not sure how you expect someone to magically know something.
If he says i like you
This is a tongue twister. And no.
If a guy likes you he will flirt with you but if he doesnt like you then he would act like he hates you.
if he acts like he doesn't
Ask him
You wait.