One technique Mary uses with a student is to have her keep both eyes open until she tracks the bird and the gun touches her cheek. Then the student closes the dominant eye. Though it takes time to learn the technique, it helps a lot of shooters learn to hit targets. If both of those things fail, Mary goes back to the tried and true method of using Scotch brand tape on a pair of shooting glasses or eyeglasses. She puts a little piece of tape on the lens over the dominant eye so it blocks out the end of the barrel when the student is in shooting position.
Women often are easier to teach than men.
But I don't really think this is gender. I think I've had a lot more women who were absolute beginners than I have men. As experienced shooters, the men are more set in their ways. Mary says a man has a hard time changing where he puts the gun. If he mounts the gun out on his arm, it's very hard for him to learn anything else, despite bruises and sore muscles.