There is this phrase saying, not only the smile brightens up the day of a person, but also shortens the distance between one and another. Indeed, one smile can wins thousands hearts, not referring to opposite sex relationship, but also in socializing and communications. In addition, it too may be the tool covers up one's true feelings. By smiling, people wouldn't know what one has in mind, as that particular person appears to be hyper and happy at all times. And of course, not all people do that, probably. As we know, smiles give us some sort of comfort, does not matter whether we are in the deepest sorrow, or the happiest moment in life. So, cheer up and lift up the smile on our face, as it is unique and priceless.