1. A method of controlling virtual object placement in a physical space as viewed on or through a display, the method comprising: receiving a count indicating a number of occupancy transitions over a period of time for each of a plurality of regions in the physical space; displaying the virtual object in an initial location, the initial location selected based on the counts for each of the plurality of regions in the physical space; determining an updated location of the virtual object in the physical space as viewed on or through the display, the updated location of the virtual object being based at least on the initial location of the virtual object in the physical space and the counts for each of the plurality regions in the physical space; and displaying the virtual object in the updated location of the physical space as viewed on or through the display, the virtual object being controlled to move in the physical space based at least on movements of physical objects through the physical space.