From Looney Labs' Webstore:
This special New Rule card works in any Fluxx deck.
It says, "If you are playing Fluxx in a public place (such as the Borders Books Cafe) and a stranger inquires about the game, all players draw a card."
This card was released in the year 2002, on the occasion of Fluxx initially being carried by the Borders chain of book stores. When this card works as described, it's a real hoot!