Throughout human history, the smile has carried great significance. And today, a healthy, attractive smile continues to be an important part of life. You meet people with a smile. You wear a smile while giving and responding to compliments. Sometimes, you just smile without word. smile is worth a thousand words. Luckily, smiling is a universal language. Wherever you go in the world, you can carry a smile with you. People can understand you behind a smile. Even when everything else in life is amiss, smile is the one thing we do have control over. And, best of all, smiling is contagious. You catch it like the flu. If you smile at someone, he or she is very likely to smile back at you. Smiling is free and has no negative side effects. A day without laughter is a day wasted. For success wear a smile!