Be yourself. If you bring a representative other than yourself, you're not going to remember what you need to do the next time. That being said, she'll be looking for you to be THAT guy, and not you. Be yourself and if she's drawn to you, all it's gravy. If not, at least you didn't front on yourself. The fact that you're nervous shows you care. Save the pimp in you for the bedroom, and be the gentleman you are the other 99.99999999% of the time