At long intervals, he drew his thumb along the edge of his knife, and nodded his head with satisfaction.

I smashed my fingers with a hammer, and my father showed me how to pinch the nail with my thumb and forefinger, gently tapping its head until it stood upright by itself.

Begin turning counterclockwise and slowly bring the hoop up over your head, flipping it over your thumb as you shift your hand so the fingers are pointing up.