Fred the Sulphur Crested Cockatoo- con't

.....so me being a complete novice, I stood stock still-actually I wasn't quite sure what to do-but I absolutely didn't know what was on the little guy's mind. So I'm standing there and all of a sudden I realized what Fred was after and this was only because after hopping all the way across the room, he clamped onto my tennis shoe (my fabric tennis shoe) and held on.  That was my initiation to the world of cockatoos and only my first day volunteering at the parrot rescue.