C.W.
We have two deaf pets....cat that we have had for 16 yrs and a Great dane we have had for 2 yrs. I talk to both of them both vocally and with ASL. We have 3 other cats and 2 other dogs that yes I talk to them too. They respond in various ways. One cat will even start "yelling" at me when it is past bedtime. Yep starting about 10:30 if I'm not in bed he will start meowing at me full volume.