ignore them, it will drive them insane.
just ignore her no matter what, unless someones life is at stake.
Massive turn off. I don't show them any attention.
Then use the 'really' technique. Answer everything she says to you with a 'really'. Works best if you can say it deadpan, expressionless and to be looking somewhere else other than her.
du ja vu
Er...actually I was.
Feed their ego
i check them out