I need advice on how to ask out a girl?

Me and my friend were walking on the sidewalk yesterday and two hot chicks in their yard asked to take pics with us and if they could put it on their facebooks, we did, but we want to go back and ask them out maybe but what shld we sayI need advice on how to ask out a girl?
Honestly thats a horrible way to start a relation ship and if i were them i would be freaked out. But just start to become friends and when you are close ask her out. Dont say anything cheesy like is it hot in here or is it just you. That stuff is just stupid. Make sure you are real to her no lies and be yourself. You want her to like you for who you are and not for what you are and not for what your trying to be.I need advice on how to ask out a girl?
maybe, just maybe, you could go up to them and say '; Hey, we were just wondering if you guys would want to go see a movie/pizza/ whatever you want to do.';





I mean Just maybe in the slightest chance
just walk past as if you didnt go there to specifically ask them out, then say:


'; hi again. we were wonderin if u wanted to come to 'where ever' with us?';


mine -


http://answers.yahoo.com/question/index;_ylt=ApeS3s.59DSDBKf85SoD3hvsy6IX;_ylv=3?qid=20090804055239AAjPmmu
find the facebook account that they put the pics on and leave a commment saying '; wow, they are pretty cute guys, you should ask them out! '; it should work :)
just be cooooool. say something like, hey we were going to go get ice cream, wanna come? or something like that.