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.
In women, who start out with proportionally less muscle than men, this process takes a bigger toll on the waistline. The average female gains around 20 to 25 pounds of fat between the ages of 20 and 50. Weight training can also raise a person's metabolic rate for as long as 12 hours after exercising. That means that if you lift weights, your body will burn calories faster.