The Letter "W"
To form the letter "W," take your index, middle, and pointer finger and make a "W" shape, while keeping your thumb and pinky finger down.
The Letter "X"
To form the letter "X," make a fist will all of your fingers, except your pointer finger. Bend your pointer finger into a hook-like form.
The Letter "Y"
To form the letter "Y," extend your pinky finger and thumb in opposite directions. Keep your three fingers in the center down.
The Letter "Z"
To make the letter "Z," take your pointer finger and finger spell the letter "Z."