There have been a LOT of threads where people talk about trying to lunge their horse but the horse just stays facing them so they can't get it to move AROUND them, they can't access his side where his driveline is because he keeps his head pointed at them. Here, in my short, homemade video, I show the very rock bottom basic of getting your horse to step away , out to the side and be in a position where you can the turn and drive them forward and around you in a lunging circle.
Keep in mind that I am doing this in a very small movement. If I were going to have Mac then lunge, I might put a little more energy into my request for him to step over, and out, and I would follow through right after that with pressure to ask him to keep moving, but move forward.
I just wanted to show the thinking that goes on with focussing on moving one foot at a time. It can be very engaging to practise this on days when you cannot ride.