while these videos are fun and wanting to better communicate with your pet is a nice sentiment, nobody should deceive themselves into thinking this dog is capable of anything more than basic word association. there’s a long history of animal researchers convinced that animals are capable of some advanced level of language if they only were taught to do so.
I have trained my dog to do this for basic things like food, walks, and water. The best thing about it is that he doesn't whine when he wants something anymore, he'll just press a button and if we tell him no he will just try again later instead of whining for half an hour