LOL! When I saw that he's wasn't "tied" with a knot I was wondering how in the world is this going to work?! I love how he glances towards the camera before he starts like he's making sure they're getting it and then he walks towards the camera after for his close- up :) Seriously cute!
No doubt that he knows exactly what he is doing! I live the way he alternated each side to get it over his ear.
As for how he learned I wonder if he got his head under the tie and panicked and the chain pulled the halter off and he learned from that ?