Sequential Finger Movement
...specific finger-by-finger opening and closing...

The sign for BEAUTIFUL in American Sign Language This is one of several ways to write this sign. It is often written with less detail.	Sequential Finger Movement That Closes From The Knuckle Joint ...specific finger-by-finger closing of the fingers... Exact details of which finger closes first, second, third, fourth and fifth in sequence.
The sign for IF in American Sign Language (one version) The sign for IF in American Sign Language (one version)	Sequential Finger Movement That Opens From The Knuckle Joint ...specific finger-by-finger opening of the fingers... Exact details of which finger opens first, second, third, fourth and fifth in sequence.