Abstract: The occupancy-control device includes a locating element for determining a location of the occupancy-control device, a movement-determining element for determining whether the occupancy-control device is moving beyond a predetermined distance parameter, and a timer element. An instructing element is also provided by which a movement-instructing signal is outputable, and a logic element is included in communication with the locating element and the movement-determining element which determines whether the occupancy-control device is stationary within a predetermined activation area. A movement-instructing signal is outputable by the instructing element based on said determination and an elapsed period of the timer element. A method of encouraging motion of a plurality of people within a crowd using such devices is also provided.