Answer Wiki. The system would be cued off the pilot's helmet, so it will definitely look where your head is pointing, not your eyes specifically (that would be a gaze-tracking system, which AFAIK hasn't yet been used for this kind of application).
Exercise to Gain Leg Weight. Although you can't make your body gain weight in your legs, you can perform exercises that encourage the growth of leg muscle. Squats, lunges and step-ups are examples of such moves that target the legs and recruit a lot of muscle fibers for growth.
Load the leg extension machine with the heaviest amount of weight you can lift for 10 or so reps. 1  Sit on the leg extension machine with your knees bent and your feet under the lower bar. 2  Straighten your legs to lift the weight, then lower it. 3  Repeat 10 - 12 times for 3 sets.