Walking the dog along a forested trail, I encountered a coyote at about 50 yards. He just stood there. As I walked toward him he disappeared only to reappear at about 30 yards. I yelled at him and he disappeared again, only to reappear behind me. This happened over and over again.
I am thinking he was trying to get my dog to follow him.
(this was in a city park, donated strip of land for jogging, mountain biking and the like).