What are the tips for bridling your horse correctly and safely?

Bridling is a daily handling task that requires correct technique to protect the horse's mouth, ears, and overall comfort, and the habits established during bridling directly affect whether a horse remains easy to bridle throughout its life or becomes increasingly resistant and head-shy over time. Before bridling, the halter should be removed or dropped around the horse's neck so it is not in the way, and the horse should be standing quietly with its head at a comfortable working height. Attempting to bridle a horse with its head too high or too low makes the task more difficult and increases the chance of bumping the bit against the teeth. Standing at the horse's left side facing forward, the handler holds the bridle in the right hand with the crownpiece raised, slips the reins over the horse's neck so the horse is loosely controlled if it moves, and then guides the bit toward the horse's mouth with the left hand. The bit should be offered gently to the horse's lips rather than forced between them. Most horses will open their mouth and accept the bit willingly if it is presented quietly at the corner of the lips. If the horse does not open immediately, gentle pressure from the left thumb inserted into the corner of the mouth where there are no teeth will typically prompt the horse to open. Once the bit is in the mouth, the crownpiece is lifted smoothly over the ears one at a time — never folded or forced over both ears simultaneously, which is uncomfortable and a common cause of ear sensitivity. The throatlatch, noseband, and any other straps are then fastened at the correct fit, with the bit sitting at the appropriate height in the mouth — creating one to two wrinkles at the corner of the lips is a commonly used guideline for snaffle bits, though the correct height varies by bit type and horse. Bridling the horse the same way every time, quietly and without rushing, keeps the horse relaxed about the process and prevents the head-tossing, ear-pinning, and evasion behaviors that develop when bridling has been associated with discomfort or rough handling.