let her steer whenever you can get her to, start with downwind and let her gain some confidence. you control the main .my teaching technique: hand her the tiller and say "please steer toward that landmark" while you go forward and "adjust something." if she needs help ask her to keep watching the landmark and move the tiller back and forth gently till she "gets" it. the more she feels in control the more fun she will have. my friend tena was flying the hull with me on the wire the last time we went out- awesome! this woman said she didnt like sailing when we met.