Don't zip your laughter sense. Keep it going. Don't dominate it's flavour. It's one pure jewel that won't cost you any penny. It just needs your lips to get wider and laugh aloud. The beauty of laughter can drool and reach your heart. Let the laughter pollute your emotion. Make it plenty. Mess your own self with this practise. Keep laughing. It empowers your esteem and it takes you ahead in life. You get to be happy, you make a living and that's when you mess your life positively.