That wasn't a general rule, it was just for anon.

"But she didn't know I thought of her as a nearly naked real good body, tits and butt!"

If he's drooling over her body for 10 mins prior to speaking up, chances are she noticed his glances and body language and was just waiting for a signal to flee, but was giving him the benefit of the doubt.

.. and then he launched into a bar pickup line with a semi-naked complete stranger.