Audio,
Here is one my orthopedist told me to do. I'll try to describe it because I don't have a picture that I can include:
While standing cross one leg over the other so that you are standing feet together, but your left is on the right and right is on the left. The knee of the front leg should bend, the back leg should be supporting most or all of your weight. Then bend forward as far as you can as if you were doing a hamstring stretch. The hip of the NON supporting leg should drop down. Hope it helps.