Being kind is probably a part of your every day life. After all, you have to be nice, in general, to get what you want and to keep the people you love happy.
But what about being kind simply for the sake of being kind? What about doing something kind for someone you don't need anything from, or even someone you don't know?
Practicing kindness, and passing it on to others encourages other to do the same thing. If we're all being kind, and doing kind things for each other, the world is bound to be a better place. And doing something nice for someone "just because" creates a feel good moment for the giver and recipient!