I also do these exercises even while walking. I allow myself to be spontaneous and childlike and make funny movements. I even sing some positive affirmations like: I am happy tee hee hee; I am free tee hee hee; I am healthy tee hee hee; I am strong tee hee hee
Regular practice of laughing alone has had a tremendous effect on my health condition. Though suffering from a tumor for some time, I can feel it getting smaller. Even my specialist was amazed when he realized it had shrunk remarkably. He cancelled the radiotherapy and said, I am happy to keep an eye on it for now. I really believe its laughter, meditation and positive affirmations that have worked so wonderfully together.
I also think laughter is anti-ageing. Though Im 60 I feel very energetic, there is less pain and I can easily do a lot of things. People remark I look much better and younger!