Have someone give her lessons on a Sunfish or any one person dingy. On day one have her turn the boat over and then right it a couple of times. Then teach the basics and with a hand on the tiller and the other on the sheet, she will better understand how two work together. Sitting on a rail and going below for beer and finger food will only make her a snacktision/railrock. She may never steer again but will better understand how it all works . . .