Smile is an element that has an internal and external usefulness. A good smile is a product of a good heart which is a product of love.it takes one who possess love to have a good heart and out of a good heart comes forth a fufilled life which in turn causes smiles. An internal usefullness of smiling is that it nourishes ones health which leads to longlife. An external usefullness is that it heals victims of your contact. It takes a smile to make a day brighter and to make bad days go away. HOPE YOU WILL SMILE Kas