I once heard that opening on the dancefloor was a deathtrap. But I think it can be done!
Try just dancing up to your target, but if you think you might get blown off, build some social proof by dancing with some others first, or if you're a really good dancer don't worry about it. Oh touch her elbow at first, I read a big article on how that makes people so much more compliant.
You can even neg her on her dancing if ya want, in a C&F way of course.
Then if that flows well give her a little advice on dancing, as a compliancy test. If she follows, then reward her with a
small compliment. Then offer to go sit down and talk. Depending on how it feels grab her hand or just link arm in arm, during the walk this would be a great time to introduce your self.
Now once your sitting down you have many options, you can either build up some more attraction or move onto comfort, to be safe I would build more attraction frist with The Cube or Palmistry, some kind of cold read, if it's a real killer cold read then turn your head and tap your cheek indicating to kiss you on the cheek. Then I'd launch into a role-playing routine or this might even be a fun place to play the marry/murder/shag game.
I could suggest all the way to full close but I'm sure you already know what your doing right.

(you can message me if you want me to.)
P.S. if you need the material for any of the routines I metioned I will gladly give you the resources.

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