Bunya is always ready to hunker down for a good head skritch. Humans may be tolerable because of opposable thumbs and the ability to rub both bunny ears at the same time.
About 23 seconds in, Bunya savors one of his favorite place places to be rubbed - along his jaw line. His teeth chatter happily and he starts his automatic licking response (also triggered by rubbing his tushy right over his tail).
Bunnies are very social creatures. If your bunny does not have a bonded mate, you are the buddy. Interact with your bunny every day - and do it on his or her level - the floor, where he feels safest.