 feel his rib cage swinging from side to side like a bell. Swing in and swing in. The ribs swing, the head and neck swing, the legs swing, sometimes the tail swings, every body part of your horse swings. Maybe not the eyeballs, but they should be moving around a little too. But everything swings, so I get in time with the swing. So if I feel his ribs starting to swing to the left, well I just use a little right leg and I just pick up on my left rein and there it is.