1, when you get a number, leave it 2-3 days before calling. any less, you seem desperate, any more and you seem slack
b, Sense of Humour are the three most important words in the dating language. try to make them laugh. do a groucho marx impersination or tell a few jokes. make sure that you can be "on" at any given moment
3, don't be "on" all the time. make sure you can tone it down and talk seriously. when you're not "on" ask questions about what she does, who she is, where she comes from. Pay attention to what she says.
d, dont expect to get anywhere on the first date. it can happen, sure, but you're there to meet her and talk to her and find out more about her and if she would like to spend time with you.
5*, dont stick by her when she has a mental breakdown, she wont do the same for you, and in fact if you tell her your problems after her breakdown she will throw them back in your face before she dumps you
*this happened to me. this is commentary about my ex girlfriend and not directed at anyone in particular. most people will greatly appreciate you sticking by them through some kind of personal disaster, but my ex wasn't human, she was a psycho hose beast