When we got home with him, I put him on my shoulder and he started to bite my hair behind my neck and it really, really tickled.
Tickles can do alot of tricks.
We take a jingle bell and but it on the top edge of his cage. He likes to knock it off over and over and he chirps everytime it hits the floor. He insists on alternating sides with the bell. If we forget, he will try to carry the bell to the alternate side to throw it over. He's the smartest bird.