Surely it is not going to work with people with no sense of humour, always crying... thinking that when you are out doing business your face should be hard like a rock and your smile can wait for the next incarnation, otherwise you are not serious, don't have brains in your head etc. For your kind information, we friends did our degrees in Engineering laughing in the same manner. I have run a factory and managed my father's Govt supply business in the same way ; laughing my way throughout. Believe me SIR, (not buddy) more and more people nowadays are realising the merits of a light and tension-free heart. They treat their clients not as their clients, but as friends, and never worry about "creepy" "serious" type people. JUST STAY OFF!