I am absolutely sure my dog knows what I am saying at times. If I open the front door, he won't come in. He will wait patiently for me to say, "Come on in." or "It's OK." or anything along those lines. He will sit on his haunches and wait until I give him an invite. He tries very hard to telepathically speak to me as well. For example, he will look at me and has something he wants to say, he will even nudge my arm, and look intently at me until I figure out what he wants. His gaze is deep, fixed, and very concentrating. I know he had to be a human in his last life. There is no doubt of this. If he hears me talk about food, any kind of food, he will go to his bowl, and sit on his haunches and look at me with that deep stare. He is telling me he is hungry. I have to ignore him sometimes because I already know what he wants most of the time, just from looking at his eyes. I know when he wants to be petted, wants food, when he wants to go outside, etc. I know he knows that I can read him as well, and he gets pissed when I ignore him on purpose.