Three words: Cocky, Confident, Funny.
THis is very true. Infact I read a ebook (it was the ultimate guide to cracking onto women pretty much) quite recently that highlighted this. Humour is probably the best way to get women. I think it's all about exclusivity. There are guys all over the place drooling all over women and making themselves appear "easy". This is why you shouldnt chase a woman too much, easiness is an apparent turn off to women (Im not a woman so obviously I can say for sure.). I found this line to be very helpful in improving my attitude towards girls. "If I could make any woman feel good, how would I walk, talk and interact with women."