Woofies are hopelessly gauche. It’s perfectly acceptable to use colorful hisses, growls, and the threat of razor sharp claws to teach them the rules of dining etiquette.
Go ahead and flop on your back and stretch your supple spine out to its fullest extent from front paws to tail tip during an important conversation. If your interlocutor is a cat, he’ll understand.
If he’s not a cat, why were you talking to him in the first place?
When taking a selfie, be sure to position your pretty face just so and, if at all possible, surround yourself with jewelry, curtains, and/or woven window seat mats that enhance your uncanny eyes.