I ususally run them through the chute to put halters on the first time and I shave their heads at that time. Along with tail. After a day or two put them in the small pen and with a show stick again I grab the halter and just tip their heads and see if they give a step or two. Also while holding halter I scratch and if they stand still while scratching I release pressure. If they move I pull just a bit to keep them going where I want, which is in a circle. After a time or two you can tell how hot they may be, if you have a hot one make sure they are with really calm ones. They will feed off each other and they can get worked up fast if not done calmly and slow. For those hot ones more short times is better then a long battle of wills. If after a few times they let me get my hand on their face to remove the halter I do so. If they pull I keep it on till they give, but not long enough to start a sore. I will put them threw the chute if they are that bad around their heads till they learn letting me close means they are released.