I found this in a comic book, Beetle Bailey actually, I was suprised but it really works.
A character in the comic is called Killer and he is a proper PUA and he has a mustasch, in one strip you find out why and it's brilliant, I put in to more practical use as explained below!

Have some sort of peacocking or tweak to your appearance that you expect to annoy the girl a little, just a little, not too much!

Killer has a mustasch, I've let my sideburns grow, but it can be anything, clothes, jewlery etc.

Since it only bothers the ladies a little it won't affect your game, that is very important.
When I'm sarging a girl and she says something about not being a big fan of sideburns or whatever, I tell her this:

"Hey if you and I would really click and get serious about each other, I promise you that I will shave my sideburns"

Girls love when men say that they will do things for them, they love it if they can change men to suit them better, so give them something obvious to change. If you are only out for a lay, you don't have to do it, or if you do want a LTR, it is not gonna be a big deal.

You can also neg her afterwards with something like, "I will shave my sideburns if you...(whatever you want her to change/do)"

Trust me this works, and builds great trust with the girls, they will think that you are the nicest guy they've ever met at club or where ever you pick them up.

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Slywalker

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