Approach Mindsets

I've met and approached and banged a lot of girls a lot of different ways.

I've done the "are you hear to see the band?" non chalant.
I've done the arm grab with an intense "hey, how are you with strong eye contact."
I've done the passive order the beer from next to her at the bar and let her signal interest (a million times).
I've done the friendly guy out just socializing semi-indirect mindset.

They all work.
The most intense relationships and the girls I found the deepest attraction to I have all opened with the following words: "how are you?"

Seriously.
I can't recommend what's right for everyone, but for me, being completely aware of what/who I want, what I'm willing and not willing to do to sleep with a girl, what I will and will not put up with has always worked well.