Originally Posted by usandpets
By trying to get closer to his hip, you are the one getting lunged. He spins not only to avoid lunging but because you are trying to get to his hip.
Did have a similar thought about that but forgot to elaborate. While I've seen others train horses differently, I tend to take a rather direct approach about pressure/cues & I teach the horse to yield to pressure wherever it's directed. So yes, if I directed pressure(not nec. Physical, can be implied/bodylanguage) at his hip, I would indeed expect him to spin & face me. Pressure at his shoulder/neck/side of head tells him to turn away from me, pressure out behind tells them to go forward, out in front tells them to back.