What is "contact juggling"

n. (context juggling English) The art of moving a a ball or balls, over one's body by rolling them, with very few throws.

Contact juggling is a form of object manipulation that focuses on the movement of objects such as balls in contact with the body. Although often used in conjunction with " toss juggling", it differs in that it involves the rolling of one or more objects without releasing them into the air. It is divided into three main techniques:

1. Body rolling means manipulating one or more props (usually balls) around the hands, arms, and other parts of the body. Balance is required to hold the ball in various positions of control. This includes tricks such as headrolling and the butterfly, the trick of rolling the ball from the palm to the back of the hand via the fingertips.
2. Palm spinning means manipulating one or more balls in the open hand so that at least one ball is in motion. Balls may be in both hands or transferred between hands to form graceful and fluid patterns, including rotating a pyramid made of four or five balls in one hand.
3. Isolation refers to the manipulation of a ball so that it appears to be suspended in place. Similar to sleight-of-hand techniques in magic or fixed-point mime techniques; the performers exploit the clear surface of the ball to hide any noticeable rotation, creating the effect that the ball is still while the performer moves around the ball.