In the end, when people die we are no more than memories to those we left behind.
An ace to the hart, a sudden smile on lips, perhaps even a slight giggle.
We can not control what people thinks of us and still somehow we can control how they remember us. Through the things that we do with people whether it is simply talking, or riding a roller coaster, in that moment you have control of how they remember you.
So when you see someone without a smile give them one of yours. When someone is irritated simply listen to their boring story because it makes them feel better then smile, always smile and know your one smile could make the difference in dozens of lives.