Wall o' text incoming... but you guys are rad and provide good advice.

I've been reading up on this sub for a better part of the last 10 or so months now, and have been using this forum as a guide more for self improvement and personal growth than really focusing just on the seduction and banging chicks angle. I can honestly say while I'm by no means a master PUA (nor do I really want to think of myself that way), it's been working fucking wonders on my self esteem and how I value myself.

And now I'm coming up to something that I could use some advice and pointers with. I'll be taking a trip for work to another city tomorrow, a city I used to live in, and I extended my stay through the weekend. I'll be hanging out with a lot of friends I haven't seen in about a year, one of them being an ex-gf that really did a number on me after breaking up. She was my huge oneitis that took forever to move on from, and was the catalyst that pointed me here in the first place.

I'm in a much better place now emotionally and mentally; my life is great and I'm super happy with myself but I was curious as to what kind of frame I should be going in with when we inevitably meet again. I'd be lying if I said there's no way I'd ever hook up with her again, but I don't hold this chick on a pedestal and I'm not expecting any kind of outcome outside of a "Hey, long time no see, you look great. Bye!"

I want to jump in on this with confidence and a great attitude without coming off as bragging or overly cocky, because that's just not how I roll. My best, most successful pickups have come from a place of honesty and having a great time regardless of what others think, though it's not always an easy thing to accomplish (again, not a full on PUA here, still learning the game after being on the sidelines for so long...).

So down to brass tacks here, how would you guys approach this. I want to demonstrate value while being genuine without coming off as bragging, way too over-confident, or - worst case scenario - totally revert back to the chump I was when this chick and I broke up. Inner game strategies? Frame of mind references? I could use a little pep talk to make this an awesome trip no matter what goes down.

tl;dr leaving for an extended work trip this weekend, will be catching up with old friends and an ex. Looking for tips to keep cool and project value without looking like a tool.