“Exploration “Play Rules.” These rules are as follows:
(1) you shall investigate the unfamiliar until it has become familiar; (2) you shall impose a rhythmic repetition on the familiar; (3) you shall vary this repetition in as many ways as possible; (4) you shall select the most satisfying of these variations and develop these at the expense of others; (5) you shall combine and recombine variations with one another; and (6) you shall do this all for its own sake, as an end in itself.”
I wrote about this exact topic a few months ago. The fancy term in the movement literature is Motor Creativity but Creative Movement sounds much better.
You can check out that article here: What is Motor Creativity?