每个人都有笑的能力，笑是人与生俱来的行为之一。有的人笑口常开，有的人不苟言笑。笑的行为能给人带来什么益处呢？亲近作用人们能通过彼此间的相视一笑而亲近起来，继而成为朋友。这是因为，只有化解了紧张的气氛，才能够站在同一立场上相互微笑。紧绷着面孔，紧张的体态， Everyone’s ability to laugh, laugh is one of the innate behavior. Some people laugh often, some people are unsmiling. What is the benefit of laughing behavior? Closeness People can get close by each other’s looks and then become friends. This is because only by dissolving the atmosphere of tension can we smile at each other in the same position. Tight face, nervous posture,