Doin' a what comes naturally.

This is actually part of a set of clips from Moe Howard's 1970's appearance on the Mike Douglas Show, and in one of the earlier clips, he talked about Curly's physical gestures and humor -- the running of his hands over his face, getting down on the floor and spinning in circles for example.

As it turned out, Curly would forget his lines. These acts of his were a way of him buying time to remember them without interrupting the take!

Regardless, even after forty years, Moe still has it. And Ted Knight gets it.