1. Raise your Rifle to a firing position
2. Crouch
3. Have an observer look at you or set yourself in a position that will make your movement more obvious, like a wall or aligning two distant objects.
4. Move your aim left and right approximately 90 degrees, at a rate greater than 1 back and forth motion a second, but less than 10 or so [untested upper limit, best results are at 2 and 3 motions a second].
5. Do so for 3 or more seconds
6. Observe your own change of location or have observer relate the information to you.