I do one of two things and haven't found a horse to not learn yet. One that has been mentioned a few times already is to turn the horse like you want to walk to the side. Once he makes a move to unlock and turn switch and go forward where you want him to go. The second thing I do is hold steady pressure on the lead. Hold lightly at first and if no response pull a little harder and hold that pressure. He may pull back just be consistent with the pressure and as soon as he makes the slightest move release pressure and praise. Then repeatet. If you keep pulling and jerking it confuses him as to which signal to listen to. Like if you train a dog and keep repeating sit until it listens, it thinks it has to listen when ready not to the single comand.
Also I would encourage you to get a rope halter. The way the knots are on it push on pressure points encouraging the horse to move off pressure while a flat halter encourages resistens. You can pm me if you have any questions.
Also I would encourage you to get a rope halter. The way the knots are on it push on pressure points encouraging the horse to move off pressure while a flat halter encourages resistens. You can pm me if you have any questions.