It's a learning experience, now I would only call her if you feel you had some attraction or if you shared interest and realy are not finished talking with her.

Now that I think of it, you should call her and get more experience.
By reading this post I feel you don't go out and practise your game enough, I've also read some previous posts from you and I just want to tell you get out!

If you have been practising your game alot, this would not happen. You would at least try some routines, kino, C&F or just be flirty, just because you've practised alot of things you have read from this site!

So my advice is go out! Everytime you go out clubbing or your at the mall and you see a girl, SLAP yourself in the face and just approach, nothing can happen, you can only learn from it.

DO IT, SAY TO YOURSELF YOUR GONNA DO THIS, hit yourself in the face, because by just reading this stuff you won't get better!

I know it's hard to do everytime you will invent a exuse to not approach, your not feeling it or you don't know what to say. Then slap youself, cause you can always just say hi.

What I did when I first tried this stuff, I went to another town. Just so I could be anonymous and try everything out, without shame.
Believe me once you opened your first set, you'll be getting on a roll and you will do good.

Go out practise your game, dont let coincidence rule your life. Take control, have no expectations, set your mind off and let it roll.
Then you can have some field reports, wich we will be happy to analyse and discuss!
It will better your life in unimaginable ways!

Was out "sarging" last night, and this girl I met last year (before I'd gotten into any PUA stuff) walks into the bar. Back then I'd tried flirting a little but basically considered her out of my league. Anyway, she catches me out of the corner of her eye and comes over to talk then goes to look for her friend. She can't find him, so comes back to talk to me and we just chat a bit. She brought up that she was still single (because she's too picky, I probably should have negged/teased her on that) and then how annoyed she was that her friend still wasn't there.

Roughly 10 hours later I realize I should have suggested she ditch him and we go grab a drink somewhere else. (Also neither of us liked that bar very much.)

Damn!

Oh well, I did stop and say goodbye on the way out and said we should do dinner... but that's kind of a generic acquaintance thing so bleh. Probably call her in the next couple days anyway.

This is why you start to meet girls when you get into pick-up.

too much chodey anchors with girls you've known before and haven't got with.

it's not impossible though, just harder than meeting a new girl