Hold the hat with the crown to the outside in an outside grip. Bring it across the body, and cross the arms. Flick the hat over and drop it onto the thumb of the catching hand. Uncross the arms.
The hat is now held in an outside grip in the other hand, which suggests that the tumble would be a good next move.
The plate is held and thrown vertically, and spins in the vertical plane. Jugglers will recognise this as the way that rings are usually thrown.
From the TricksWithHats archive