Best not to mention youre a pilot until the girl knows you a bit better. When I meet a new girl, I always try to leave it as long as possible before telling them that Im a pilot. Ive managed to go through a first date without mentioning the p word. (BTW she knows Im a pilot because my mate is going out with one of her friends, but she doesnt know that I know that she knows Im a pilot).
Be modest and when you finally tell them theyll be impressed that you didnt mention it earlier!
I hope Ive not confused you too much!