There are several ways to classify anything as opposites in this daily living. For now, I will take this very mainstream topic: making someone happy or not.
Try to make someone happy -- all the way, no holds barred..! If you let go of yourself and do this, it will be rewarding. It will give you a surge of unspoken happiness that you can't explain -- it makes you happy too!
How many people do you encounter daily? How many frowned after conversing with you? How many smiled?
Others just gave you a poker face.
You can score yourself on how many times you don't care. It's also the day you went home feeling dragged. But if you intend to make someone happy now, and I mean sincerely, it will make a difference.
Imagine a world where everyone's habit is to let another person be happy daily, even in the simplest way. Try!