The Manikin is moving according to your input, so if you move using the controller, the Manikin will follow you. But if you move in real space, the manikin position will remain the same while trying to emulate your body position. If you move too far from your original position, the Manikin will teleport to your current position. If you rotate for more than 90° degrees, the manikin will rotate accordingly.
The command can be launched again to exit the human visualisation.