To put a bridle on a horse, start with your horse--
halter on and
safely tied. You may have him in cross-ties or tied with a
lead rope with a panic snap or quick release knot. Some people like to have their horses untied, but that can be a problem in public stables where there a lot of people around. You don't want your horse to get loose amongst other horses and people when in the stable as this could lead to accidents. Make sure you use a
safety knot if you are not using cross-ties.