How do you ask a guy if he has a girlfriend?

Oh,then ask one of your female freinds to walk up to him,and tell him that she saw him in the mall with his girlfriend and that they look good together. He should give you an answer that way,he would either say that he doesn't have a girlfriend,or that he does,I can't promise that this will work,but you will have nothing to lose. Hope it helps (:

Get one of your guy freinds to find out indirectly, (:

Well does he know you like him?
if he don't & you don't want him to make it obvious be like how long you been with your girlfriend. Then for sure you'll know. If he says he don't have one why you thought he did be like oh I thought you had told me you did. If you want him to know you do just ask do you like anyone or have a girlfriend. Which one you choice?

Just ask him. Ease your way into the topic and then just ask him.

I always just ask them! It works every time ;)