Both the cat and dog have these absolutely adorable expressions on their face. You can make out their thought process by reading their facial features. The cat is completely drunk out of its wits and wants nothing better than to sleep on this dog's back. The dog on the other hand is almost about to collapse into deep sleep. But it is observing the world around it, checking for any vulnerabilities and the looming threat of potential predators.
It can be seen eyeing up both the owner and the camera. "You better not come near me or my little buddy here or you get the sharp end of my teeth into your flesh human!" The dog warns any who try to come near it. That warning also includes the owner who should tread very carefully.