It may be time to let go and stop trying to control everything!. The Hanged Man is telling you to relax and let events unfold, so you can discover the true meaning of the situation you are in.
He tells you to do the opposite of what you would normally do. If your instinct is to run north, turn around and go south. If you're angry -- and want to yell at a friend -- try being silent so you can discover your friend's motivations. When you surrender to the world instead of trying to manipulate it, it runs a lot smoother.