an opportunity for better signage?

A patron approached the reference desk said something to me in a language I couldn't quite discern. I wasn't sure if it was English, heavily accented or another language. I made the motion to "write it down?" Perhaps he could write it down or draw it.

He folded his hands together, placed it at his crotch, waved them around and said "pssshhhh".

"Oh, bathroom?" I said. And walked him over to the men's room.