Clicker training is a way to reward desired behaviour so animals quickly learn exactly what your trying to get them to do & enjoy trying to please ( well ok, maybe some just like gambling & trying to work out how to get rewards). Clickers are about£2 from most pet shops or I just make a click noise to keep my hands free. Start by clicking & instantly offering a small treat. Repeat a few times until the sheep start to look for the feed when it hears the click. I usually repeat this for a few sessions to get a solid grounding, start varying the length between the click & reward from instant to a few seconds & the amount/type of reward. Gamblers wouldn't get addicted if they won everytime! Now you can start teaching anything you like. eg being handled all over, lifting feet, getting headcollared, leading etc. To headcollar start by click & reward for letting you touch the face, then progress to rewarding for gentle restraint Then allowing headcollar over nose etc etc. You don't need to treat every time you click once they've really got the hang of it, plus you can gradually change to just rewarding the best behaviour. Its very quick to teach anything this way & in a couple of days you should have them catching & leading, lifting their feet, tying up etc just like ponies