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.
Lie on your stomach. Step 2. Stretch both of your arms out in front of you with your palms facing the floor. Step 3. Straighten your legs behind you with the tops of your feet flat on the floor. Step 4. Engage your abdominal muscles as you raise your left arm and right leg several inches off the floor. Focus on using the strength of your abdominal muscles to lift your limbs off the floor.