Dating Advice

I am looking for advice from my friends. My friends know me pretty well. I think they might know how I might screw up going out for drinks with a woman. Someone told me "just be your charming self." My problem is that when I am nervous, my charming self can turn into my annoying self. You guys know me, what traps should I avoid? What conversations should I stay away from? What should I keep an eye on?