A method controls manipulation of a computing device. The method turns on a camera device to capture images and gestures of a manipulation owner, analyzes the gestures to get operations to control the computing device using a recognition unit of the computing device, and determines whether an additional participant gets the manipulation control of the computing device. If the additional participant gets the manipulation control of the computing device, the method stops to capture the images of the manipulation owner, and captures the images of the additional participant. If the additional participant does not get the manipulation control of the computing device, the method still captures the images of the manipulation owner.