Answer:
I wiggle and cannot see; sometimes underground and sometimes on a tree. I really don't want to be on a hook and I become a person when combined with “book”.
The more you take of me the more you leave behind.
I twist and turn and leaves a loop
Everyone has me, but nobody can lose me. What am I?
I am an instrument capable of making numerous sound but cannot be touched or seen.
I am rarely touched but often held. If you are smart you'll use me well. What am I?