Congrats! =D
Yep, definitely be confident.
Apparently the majority of girls like that.
But make sure you're being yourself. Don't want her to fall in love with the wrong guy.

Maybe, if you want to, try to do something sweet for her to remember you by, like writing a note or bringing her flowers.
I know that would totally get me. =p
As for the kiss, with my first boyfriend, I totally wasn't expecting a kiss on the first date, but he kissed me just as we were saying goodbye. I find going from a hug and then into a kiss works well, I don't know.
I guess because you're already close?
Unless you want to talk to her about it first. =p