On the TV series “Bewitched”, how did Samantha (Elizabeth Montgomery) work magic?

Samantha (Elizabeth Montgomery) on the TV series “Bewitched” worked her magic by wiggling her nose.

Jeannie on “I Dream of Jeannie” (NBC, 1965-70) folded her arms in front of her and blinked.

Uncle Martin on “My Favorite Martian” (CBS, 1963-66) pointed at objects to levitate them and raised his antennae to become invisible.