Some people spend their spare time cooking, socializing, or exercising; personally, I observe. I am a versatile observer, mind you: I watch everything from people to their interactions, to buildings, to sceneries, all types of stuff. I can ponder anything and its contrary. If you ever come across a strange lady sitting in contemplation with the face of a constipated Yoda, this could be me indeed.
But look, it's all very simple. As Ferris Bueller once said from the top of his inestimable wisdom: "Life moves pretty fast. If you don't stop and look around once in a while, you could miss it."
Well said, Bueller!
Now get your smart ass back to school.