Hi! Sonja asks in the comments why some people fingerspell the whole name and why some people have name signs. You fingerspell the whole name the first time you meet someone so they know your whole name. A name sign usually uses just a letter and a gesture.
Check out the video to learn more about it.
By the way. When I sign Jimmy Carter I am signing peanut and the letter C. I forgot to mention my hand was in a 'C' shape.