A method for managing a multi-user animation platform is disclosed. A three-dimensional space within a computer memory is modeled. An avatar of a client is located within the three-dimensional space, the avatar being graphically represented by a three-dimensional figure within the three-dimensional space. The avatar is responsive to client input commands, and the three-dimensional figure includes a graphical representation of client activity. The client input commands are monitored to determine client activity. The graphical representation of client activity is then altered according to an inactivity scheme when client input commands are not detected. Following a predetermined period of client inactivity, the inactivity scheme varies non-repetitively with time.