Sometimes I ask the dogs questions.
 "Do you want a treat?"
 "Do you want to go outside?"
"What was that sound?"
 "Did you do this?"
"Where's your toy?"

 Buzz responds as a normal dog should.  He barks, wags his tail, runs in circles, starts doing random tricks or hides in his box, depending on the question (more importantly the tone of the question.)

 Louie some times takes cues from Buzz, but usually just sits there and stares at me as though he were trying to communicate with his tiny mind.  It's like I can almost get what he's trying to say . . .  but no.  A few times he has stared at me for a while, and then purposefully walked  over the computer as though he had decided the charade was up and he would type his message out, but just before he reaches the keyboard he turns around, like "No, that would be showing them too much."