Keeping things interesting by working out ever more complex series of passes (throwing the club to someone else), selves (throwing to yourself), holds (not throwing the club at all) and zips (grabbing the club out of one hand with your other). These are set over varying number of beats and are repeated by each juggler. The most basic patterns are like "pass-self-self-self". At the more complex end are patterns with four jugglers each doing something like "pass-zip-self-pass-pass-self-zip-pass" all out of phase with each other. Of course, with more than two jugglers involved they must also know whom they are passing to on each beat.