Need Help: I could use some advice about a girl I want to ask out (please answer)?

HELP!! Well, ok, maybe that was a little over dramatic. The truth is that I'm kinda inexperienced when it comes to dating. I'm in my early twenties, and while I've had girlfriends, they were always the ones who pursued me so I don't know how to successfully attract girls. Most of my friends have no problems with this (it's funny cause they make it seem so easy, and they're not that good looking). Anyway, this brings me to my question, I was thinking of asking this girl I know out to do something casual (I was thinking about just getting something to drink, mainly because I know she likes to drink). And while I have all the confidence to go ask her what I don't know how to do is create that attraction once I'm out with her. I get the impression that she likes me, she flirts a lot and when I asked for her number one time she seemed really excited. As well, my intention with her isn't to get into a serious relationship, I'm still young and really only want to have fun and keep it casual. Thanks for any advice.Need Help: I could use some advice about a girl I want to ask out (please answer)?
Seems to me, you are looking for a friend and nothing more so I don't understand why you are concerned about creating an attraction while you are out with her. You don't need too much experience to go out with a friend, so just do it. Sounds like you may be after a little more than friendship, though, so please DO NOT lead her on.