Winged creature is right DK613 - if you've honestly done all of that and still no response from the chica that you like - move on. I don't know how old you are, but I've found the older a woman gets (starting late 20's and all) the more you get out of that bad boy stage. That's not to say that we want a fucking doormat, but a sweet guy with an edge (i.e., don't drop your balls off along the way) is better than the moody asshole we dated in college.
Or maybe that's just me.
Either way don't give up. Just find another chick.
Un clavo saque un clavo...