The trick is to let the laughter outweigh the tears...isn't that indeed a neat trick? But then, when we are in one of those off-moods, what happens is quite the opposite-the tears outweigh the laughter. Stop looking at others, stop comparing yourself to others, stop thinking of what others will say. What's important is you! Once you conquer your sorrow(s) and convert them to gladness, the other people follow suit, imitating your happy mood, don't they not?