We just talk to our guy, it seems we say the same thing to him as he now does repeat.
I also think they figure things out... All I have to say is "your show is on" and Huey get into his position to watch Jeopardy... he also will answer to "what does the birdie say?" with a wing shrug and tweet tweet tweet.
Hope that works, I know folks have said that Koolaids videos taught their birds to speak.
Lin & Huey DOH 4/28/13.