Upon reading this question, lots of things are going back and forth and left and right in my mind. For now, I think my top 3 are animals, sky, and when I see the people I love. I think you can't predict when you will smile when it is about something actual... something around you at the moment. That's why watching people might becoming one of my kind of thing to do (not in a bad way I promise). It's just... I'm sure and I believe there will always be something happening that is especially endearing about the souls inside this world.