Some additional points about Natural Horsemanship:
1) Treats are rarely given when using NH techniques.
2) Horses learn through the release of pressure, so when training, applying the pressure is the cue, and releasing the pressure is the 'reward'.
3) As the horse learns to respond to the cue, the cue gets softer and quieter, resulting in a horse that will perform tasks with very subtle cues.
4) Natural horse trainers do not use fear, force or leverage to teach the horse. The horse learns to trust the handler, and a close bond is formed.