Chandler: Okay, I've already taught you so much already, but whatever. See when you flirt with a guy you think, "I'm just flirting, no big deal." But the guy is thinking, "Finally! Somebody who wants to sleep with me!"
Monica: No way!
Chandler: It's true.
Monica: Well that's pathetic!
Chandler: Again true.
Monica: And this goes for all guys?
Chandler: All guys that are awake. Then we go to sleep and then all the guys from the other end of the world wake up and behave the exact same way.