Grow a pair and ask them! You'll always regret it if you don't! btw I have never dated anyone before good luck
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.
it all depends on the guy. also, chances are that he likes you back.all you need to do is get him to know that you like him.
When he has a penis.
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.
nothing! they maybe know that the guy you like likes you back!