1. A method of operating a virtual world in combination with an avatar tracker and an intelligent bank branch manager to provide an output which can be observed at the virtual world, the method comprising: receiving, by the virtual world, floor plan data which is representative of a floor plan of a virtual bank branch environment within the virtual world; receiving, by the virtual world, a first set of avatar data which is representative of behavior of a first set of avatars which represent bank customers within the virtual bank branch environment within the virtual world; electronically by a processor of the avatar tracker, tracking a number and locations of avatars of the first set of avatars in the floor plan of the virtual bank branch environment within the virtual world, wherein the number and locations of avatars of the first set of avatars is based upon the first set of avatar data which is representative of behavior of the first set of avatars which represent bank customers within the virtual bank branch environment within the virtual world; electronically by a processor of the intelligent bank branch manager, identifying a suggested number of avatars of a second set of avatars which represent bank tellers within the virtual bank branch environment within the virtual world, wherein the suggested number of avatars of the second set of avatars is based upon the tracked number and locations of avatars of the first set of avatars in the floor plan of the virtual bank branch environment within the virtual world; receiving, by the virtual world, from the intelligent bank branch manager the suggested number of avatars of the second set of avatars which represent bank tellers within the virtual bank branch environment within the virtual world; and outputting, by the virtual world, an output which is representative of bank customer queue length which can be observed at the virtual world, wherein the output representative of bank customer queue length is based upon the suggested number of avatars of the second set of avatars received from the intelligent bank branch manager.