Awwww, well my mare loves to lick, so I could get her to lick my head probably... ewww. I had one horse who'd always steal your curry comb from you and then chomp on it, followed by flinging it down and occasionally peeing on it. O_O some horses have the weirdest quirks, but giving you a head massage is a nice quirk!
When I brush Raven, I feel that connection between us grow. It's a quiet time for us to bond with eachother. I curry, then brush, and then I have a soft nuzzle muzzle massager that I use. I love this time with her.
I actually have the entire line of Oster brushes and curries. My big mare LOVES being groomed. I can't tie her up while I do it because she will literally start falling to sleep and stumbling around like she's drunk. It's kind of funny to watch, especially knowing that she is that relaxed afterwards. Her absolute FAVORITE spot to be scratched is right between her front legs. She'll stick her head nearly straight up and point her upper lip and wiggle it around.