How to motivate your horse? What role can rewards play? Can we do without it once the exercise has been learned? What if my horse is intrusive when working with carrots? The caress, the voice, are they rewards? So many questions raised by the work of “positive reinforcement”, so called by ethologists. The author, herself a scientific background, presents a little-known approach to the equestrian world. "Clicker training" is above all a state of mind more than a technique. It places learning mechanisms and animal knowledge at the heart of the system. Drawing on numerous scientific references, Hélène Roche points out a promising way to enrich the relationship between horse and man.