It depends what sort of girl she is. I date alot and I have followed niceful tips from HealthGuidance 'How to Impress a Girl?' Just be yourself, if you are shy then be shy but just go and talk to her, if you are chatty then be chatty just be yourself. Always talk to a girl by maintaining an eye...
The good girls are attracted to bad boys because the good girls are being repressed of the ' baddness' in them being attracted to a bad boy gives them sorta of like an adrenaline rush because they bring in excitement they lack.