If the original question was "Wanna dance?" then there are a world of things you
can say back like "Don't be so picky, I wasn't" (then duck)
The reccomended reply: "Well I do!" then start dancing RIGHT THERE. Ignore your strong urge to run away. Just make like Bevis, dancing like you do when you're alone in your bedroom and Salt'n'Peppa is on. If she was too uptight to dance, she's too uptight to be seen near you now!