How low can I go...

Just grab my skirt from my bag and... "If you do the gradient in each direction, you have two vectors parallel to the surface, right?"

And the bra... "Oh, okay, I see, and then you... How do you make that a normal?"

Oh, Jeff, you're so dumb... "So, tell me about the cross product of two vectors." Hmm, there's more books in here... just shove everything down and... that just leaves my panties...

"Um..." Hehe, he's doing the right hand rule, how cute! And... I've got my panties! "Oh, hey! That would be normal to the surface!"

I think maybe he deserves a reward for that...