Cadavre exquis is a method by which a collection of words or images is collectively assembled. Each collaborator adds to a composition in sequence, either by following a rule.
The technique was invented by surrealists and is similar to an old parlour game called consequences in which players write in turn on a sheet of paper, fold it to conceal part of the writing, and then pass it to the next player for a further contribution. Surrealism principal founder André Breton reported that it started in fun, but became playful and eventually enriching. Breton said the diversion started about 1925, but Pierre Reverdy wrote that it started much earlier, at least before 1918.
I have been playing this game, since I was a child, with familie and friends and now with my son Carlo. I like the tension under the game and the surprise when unfolding the drawing. It is a good way of sketching characters.