If you have a knotted halter, use it. If not, put the lunge line chain over her nose. Face the direction you want her to go - look beyond her rump to a tree, post, car, etc. Hold your lead in your left hand and direct it toward the point of her shoulder. Just take the slack out. Ask her to back, using one word and not her name. If she doesn't move pull, don't ever jerk, the lead aiming for her shoulder. Shorten your lead if you have to. The chain has a ittle bite and a horse doesn't usually resist it very long. She may just rock back at first so immediately loosen the pull. Rub her forehead, then ask again. Be patient and she will start to figure out what she is supposted to do. When she understands, she needs to move her back feet, not just the fronts. When you get a few steps, remove the chain and put her away. Repeat the lesson the next day eventually asking for more steps.