I know I'm probably too old to be asking this question, but I've never been on more than one date with someone before. I've never kissed anyone who wasn't family, and I don't know how long I am supposed to wait before It would be appropriate to kiss her.
Most Helpful Girl
Just do it when the time feels right. Preferably when you're alone somewhere, since it's your first kiss and it should be intimate.
You can try giving her a compliment, or saying something silly to break the ice and then just go for it :)
Go mudkip, swipe her off her feet! ^^0