what the flirty cashier said:

Cashier: You know, you should take that smile to the U.N. I bet they'd let you right in.

Me: That's funny.

Cashier: No, I'm serious.

Me: No, it's funny because I actually used to temp at the U.N. and, as they wouldn't give me an ID, I'd often get in with a smile and my boss' ID.

Cashier: No kidding!

(And, of course, it's also weird because of my recent post. See "Agent-Speak.")