Answer:
I have two bodies joined together as one. When standing still I run and run.
I am owned by every man though my length differs. Their wives uses me after getting married.
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”.
I get thrown in the air and will fall down. I get thrown down and I will rise in the air. What am I?
Four leaves I have.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?