OK, imagine the scene . . . . a smokey Avalon lounge - about 3 o'clock in the morning - lights down low - everybody in a relaxed mood - then the lights go right down - almost off - a pianist starts to tinkle on the ivories - and in a short while the rhythm has everyone snapping their fingers or clapping their hands - why not join in? Just let yourself get carried away with the moment.
http://www.youtube.com/watch?v=THBucj4bnrQ