When they are perfectly straight in front of ya and looking back. Those are my fav. I really like winter ears too. So fuzzy and look like lil cotten balls.
This is a tough one...probably their eyes, when looking in them I see so much, but I love to give them kisses on their nose and their ears speak volumes.
the soft bit along side the nostrils i cant help but kiss it and the lips all floppy and wrinkled...just love it all especially the smell..I always carried a set of used leg bandages in my school bag so i could have my horse smell fix throughout the day lol..many years ago now but it just came to me