Noted comedian, actor and filmmaker Charlie Chaplin once famously said, ‘I have many problems in my life. But my lips don't know that. They always smile.’ In fact, countless films, novels and plays have been woven around the premise of how one overcomes difficulties with a smile – or a positive attitude. And now, consumer products major Colgate-Palmolive has found an endearing way to weave this idea into its new campaign ‘Smile Karo Aur Shuru Ho Jao’. This is in line with the brand’s motto - ‘Everyone deserves a future they can smile about’.