Sit quietly at the edge of a lively conversation. Maybe the conversation occurs at a dining table, maybe it occurs in a sitting room, maybe an airport lobby or a library. After listening for a very long time in silence—you have watched intently but unobtrusively, absentmindedly moving food scraps from here to there on your plate, lifting books from the shelves and setting them back—suddenly ask a series of increasingly pointed questions about a trivial detail of the conversation. Once your questions have been answered, return to listening in silence. After awhile, without fanfare, stand up and run from the room.