Yes you can but it also helps if your girlfriend isn't the jealous type.
No he already has a girl friend
hang out with her more often and then after a few days, ask her to be your girlfriend
i am with another girl friend
tell your girlfriend and then go to your boyfriend and say all the good things about your girlfriend
kesha don't have a girlfriend/but her only girlfriend is her friend
You can't make a girl jealous only when you know the girl likes the guy. If you know that the girl likes the guy but already has a girlfriend, then spend more time with the girlfriend that the guy already has and then laugh alot areound her and if the girl you're trying to get jealous treat her like a friend but ignore her, but not too harsh!
girl friend is a friend that is girl and not a best friend and girl friend is best friend
Novia (girlfriend) amiga (for a friend who is a girl)
He has no girlfriend :)
It depends on who your girlfriend is.
I HAVE a girlfriend