Join Date: Jul 2010
Location: Merritt Island, FL
If your horse was trained for any showmanship, he should know how to do it, at least from the ground.
I'm horrible at explaining aids, but I'll give it a try: when I ask a horse for a turn on the haunches, I stop him (usually along the rail of the arena, especially if it's been a while since he's done it), sit deep, and use my outside leg at the girth to ask him to turn. I keep my inside leg off of him and use my seat/weight aids to keep him from moving forward.