Here is a simple exercise for everyone as long as you have started asking your horse for simple bends (including those doing Grand Prix). At all gaits and with no fuss, using an easy inside rein that does NOT go toward the horse’s withers (an indirect rein), can you bend him a little left for four or five strides and then within one stride bend him a little right for four or five strides? He doesn’t turn because your inside leg prevents that. You should be able to do this ANYTIME – walking along the track, doing a leg yield or a half pass, or a canter pirouette. This should be easy and it is NOT wagging the head, but just a simple change of bend of the neck.