1. A method for interacting with a computer based application, comprising: using a sensor system to automatically track motion of limbs of one or more users actively engaged with the computer based application; based at least in part on the automatically tracking motion of limbs of one or more users actively engaged with the computer based application, automatically determining that the one or more users actively engaged with the computer based application have performed a first predetermined motion; performing the computer based application including performing a first action in the computer based application based at least in part on the determining that the one or more users actively engaged with the computer based application have performed the first predetermined motion; using the sensor system to automatically track motion of limbs of one or more entities not actively engaged with the computer based application; based at least in part on the automatically tracking motion of limbs of one or more entities not actively engaged with the computer based application, automatically determining that the one or more entities not actively engaged with the computer based application have performed a second predetermined motion, the first predetermined motion is a different type of gesture than the second predetermined motion; performing a second action in the computer based application based at least in part on the determining that the one or more entities not actively engaged with the computer based application have performed the second predetermined motion, the second action is a different type of action than the first action; and automatically reporting the-first action and the second action in a user interface of the computer based application.