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.
Setting Goals. 1  1. Learn what your healthy weight is. Not everyone will have the same healthy weight goals, as each person's body will vary. 2  2. Understand caloric intake. At its core, weight gain results from increased caloric consumption. 3  3. Exercise. Exercise can help add muscle, and in turn, lead to weight gain.