When working with your horse, make sure that they are focused on you.
Horses have excellent peripheral vision.
They can see almost 360 degrees around them. There is a blind spot just in front of their nose and directly behind their tail. Because of this, there is no reason for a horse to turn or move while you are working with them unless you ask. When working with a young colt, you want to instill the concept of focus immediately. To do this, all you have to do is ask your horse to stand.