9. The augmented reality device of claim 7 , wherein to receive the context data from the mobile computing device comprises to: poll the mobile computing device to determine whether the mobile computing device has the context data available; receive, in response to the poll of the mobile computing device, an indication from the mobile computing device that the context data is available; request the context data from the mobile computing device in response to the indication that the context data is available; and receive, in response to the request, the context data from the mobile computing device.
7. The augmented reality device of claim 1 , wherein to determine the context comprises to receive context data from a mobile computing device associated with the subject.