Want to be with a woman

I'm the guy who had used escorts. Few weeks ago I was sort of trying to rationalize to do it again by having one come by for just a massage then if we did other stuff then it would be ok. Well I'm not doing that!

Any guys out here give me tips on hooking up with a normal girl? Like when your out and about. Not the online dating or friend hooks you up with someone but anybody have any real life experiences on how they met a woman/hooked up?
I probably just need to start talking to them. But many times the chick may be with her friend as well.
Say like today i'm in a gas station and see a pretty attractive lady. I was doing my business and left. I know if say she looked at me and smiles then that would tell me to go for it but many times they dont seem to notice me. Any tips?