i like this one girl and i dont know if she has a bf how do i get her to tell me w/o asking her directly?

If you like her, chances is that your body language is already showing it. So if she is single, she will also subtly drops hints to you to get to know her more - that is if she likes you back.

A girl who is attached & is serious with her relationship to her boyfriend have a i-am-taken kind of attitude... in her speech & her ways, she will show this to you. If you don't get it, it is ok... because sooner or later, she will tell you.

Just go slow & see what happens next.

get to know her and what she likes most girls come around talking about there boyfriends if they have one. If it dosen't come up for awhile ask her out on a date and see what happens from there!!

man bro im in the same situation that you are in a sucks trust me i know this worst feeling in the world

It depends on how well you know her... if you don't know her that well, you'll have to do it delicately or it would be really awkward.