As far as figuring out what works I am thinking about my actions in the moment. How much to touch her, how long to hug goodbye, how to react to things she says or does..
I think this is gonna drive you crazy. If you have to think about it, then you're gonna be wooden and fake, and you're gonna be sweating.
Twice now I have put in very short amounts of "dark" time with W (less than a week), and both times she has come out the other end contacting me, joking, positive thinking. I don't think about hugging her or touching her at all, don't worry about reacting, I just be me. With the GALing and such, I'm mostly back to my happy self, and W sees it.
Obviously, I'm not an expert at all - but if you worry about YOU - stop worrying about expectations, stressing whether or not you hugged too long, and so on. If your W is ready, you'll know. If your hands touch accidentally, and she doesn't pull away, then hold it. If she doesn't want it, she'll pull away. If she pulls away, then give her more time.
Just deal in the moment; if you've practiced GAL, PMA, etc, then you'll be cool.