The Earl of Ickenham believed in pouncing. Let him explain the Ickenham System in his own words.
I call it that. Just giving you the bare outlines, you stride up to the subject, grab her by the wrist, clasp her to your bosom and shower burning kisses on her upturned face. You don’t have to say much – just “My mate!” or something of that sort, and, of course, in grabbing by the wrist, don’t behave as if you were handling a delicate piece of china. Grip firmly and waggle her about a bit. It seldom fails …
(Cocktail Time, PG Wodehouse, 1958.)
At the Savile Club they are pouncing like mad in the ballroom. Wiki describes their technique:
Pouncing has been a common technique for centuries, used to create copies of portraits and other works that would be finished as oil paintings, engravings, and so on. The most common method involves laying semi-transparent paper over the original image, then tracing along the lines of the image by creating pricked marks on the top sheet of paper. This pounced drawing made of pricked holes is laid over a new working surface. A powder such as chalk, graphite or pastel is forced through the holes to leave an outline on the working surface below, thus transferring the image. The powder is applied by being placed into a small bag of thin fabric such as cheesecloth, then dabbed onto the pricked holes of the pounced drawing.
These pictures of Saskia and her team at work were taken by Maja Kostka.
The Rolling Stones don’t pounce, they jump.
https://youtu.be/a6lJ071MeKA