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So assuming that she does come, how do I approach her sober? Do I initiate kino right away? What should I talk about with her? And how do I escalate things?
You are thinking about this way too much. I can understand your concern but you need to stop over analyzing this. However, I will still answer your questions but it's really not that complicated.
So assuming that she does come, how do I approach her sober?
Hey, what's up?, Hello, or Hi are all acceptable forms of approaching her. You don't need to run a fancy opener of any kind because you have rapport with this girl.
Do I initiate kino right away?
I would...

A just am in the habit of hugging every girl that I know. I like to do it, and also because if it becomes habit and someone I know sees me out she's going to come up and hug me. If I'm gaming a girl at that time I just got the pre-selection I needed.
What should I talk about with her?
This is going to be kind of tough for us to answer because we don't know enough information about your first interaction. If you can remember anything from the first interaction I'd use it. You have some attraction built which you want to keep. Soon you will need to start establishing comfort with her more. I'm sure you can come up with some descent comfort building questions if you need them.
And how do I escalate things?
We'll keep this really simple. Sinn does something with kino that I read, and I have been following this idea for a while. Essentially, once you start the kino escalation with touching, then kissing, then more sexual touching, etc, etc you keep going until she says "Stop."
The main reason for this is girls have different thresholds. One girl may think you're a weak suck if you don't get up her shirt. Others it may stop at kissing. You really don't know so the idea of escalate until you stop ensures A.) you got as far as you could with her B.) You reached her level. Finally, you will eventually try to escalate again past this level the same meeting.
HAVE FUN MAN!