This comes from my own experiences and it works well.

Don't be trying to chase the girl, doing favors for her, in hopes that she realizes "what a nice guy he his" and comes to you. It will never happen.

Sometimes I am a little dickish actually. Here is an example that came to mind. I was with this girl whom I had met at the club, and we were on the day 2. she called me a playboy, dangerous, bad, etc etc. she even called me out on leaving the club with another girl after i had already gotten her number. I apparently ignored her when she said hi to me while i was with this other girl. I wanted to show her that this wasn't true (well everything except being a playboy-i will always admit it to a woman), but I also didn't want to lose my alpha frame by being supplicating. So, sometime during the day 2, I picked up some trash that was littering the streets while we were waiting to enter the restaurant. She said, "wow, you are so nice" and her face sparked up. Day 2 went great and never again did i get accused of being a bad boy.. i just wasnt going to give my niceness to her unless she earned it.

The trick is, to do nice things, but don't do really nice things for her until after you have slept with her. Do nice things for her friends, not her. Do nice things for strangers on the street, not her. It shows her that you are a nice guy, but also that if she wants you to be nice to her, she will have to earn it. Very powerful stuff.