I'm gonna sound like a real novice here, but that's what I am.
I'm 19, never had a girlfriend before, have always had very low confidence and no self belief etc, always believed I wasn't good enough for any girl to ever look twice at me.
Been working a lot on my confidence etc this year and have been getting better, and I met this great girl that I like a lot at university recently. For once, I actually did something about it and we met for lunch one day last week at uni, then she invited me out clubbing with her and her friends in the weekend. It was an awesome night, we danced quite a lot, and kissed more than once, held hands etc, all that kind of stuff. Trouble is, she ended up quite drunk at the end of the night (she was fine when we first kissed for sure) and doesn't remember a lot about the night. I really like this girl a lot and I hope some of it meant more to her than just a drunken mistake.
Never been in a situation like this before, so I just don't know what to do other than make a fool of myself trying to ask "did you mean to kiss me, or was it a drunken mistake?" I have asked if she remembers and she said she "kind of does" and I have left it at that so far.
We met up for lunch today at uni, and seemed to get on more as just friends.

Any advice? How can I go about talking to her about this?
As I said, when it comes to this stuff, i'm a complete noobie with no idea whatsoever.