Try sitting on the ground a good distance from your horse and wait for him or her to come over to you.
Always start with small tricks. Don’t attempt harder tricks until you are positive that the horse can handle it and has absolute trust in you.
Don’t force the horse to walk but don’t let the horse not do it. Bring treats as a reward, but don’t make it so the horse is working for treats. This means using them sparingly, if at all.
You need to understand that you won’t ever be doing this the wrong way; it is your decision and there is no strict way to do it.