you know he like you if the following things occur:
looks into your eyes frequently
doesnt want his girlfriend to see you with him
acts scared or worried when he sees you and his girlfriend laughing/talking/arguing
may ask for advice for how to break up with someone, because they like you but calls the other person by your name
iam in love with this guy but i do not know if he likes me or some other girl
You be yourself while making some kind of conversation with him... then if he asks you out then you know he likes you or else there's a big problem...
When he has a penis.
He likes you that is what is important. it doesn't matter who else knows you.
Just ask him. He will let you know with his mouth or his body language.
Let them know how you feel :)
Look for these signs to see if he likes you You will know if she\he acts weird around you and avoids you more than anyone else. And let her\him know the real you not some fake image you might give off.
The same way everyone else know who they like.
Yes
If he likes someone else then it's doubtful he would date you. If you really care about him more than just a friend then you should let him know.
If you like him tell him you do then if he likes you he will tell you. Buy some general sighs he likes you are... - if he always has time for you - if u catch him staring at you - or if he tries to get closer to u
Let the guy who likes you know you already have interest in some one else. First you should see if the guy you like, likes you back. If he doesn't, see if there is something good between you and the guy that likes you. "It is better to be with some one who loves|likes you then to love|like some one who doesn't love|like you."