Walking on a busy sidewalk I notice humans. The same sidewalk rarely sees the same people twice unless they live close by. It is especially interesting if you see the same person more than once on the same day at different times. Their gait, behavior, human emotions, gestures and everything that could possibly be HUMAN reflects what they feel at that moment. One man for instance, because of his own mistake had a miserable day at work. But he loves the fact that he is with his wife and children who love him despite his shortcomings. His eyes are shining with little tears of happiness and a fake smile reminding him of another work-day ahead. One woman, loves her job beacuse she works hard and gets promoted but goes home to a drunk who beats her and does not appreciate her prescence. She has a smile on her face for the promotion, and tears in her eyes as the smile will only last until she goes back home. But this is not what I notice anymore.
I was driving to work one morning and noticed the road ahead of me. Unsual, but there was lery less traffic. I sped through the turn to make it to the signal before it turns red and I thought to myself "today is not going to be a green day". As I waited, I simply looked into the rear-view mirror to see if my hair looked ok. Its weird but I am not used to looking into the vanity mirror in cars with the automatic light. I feel it is very feminine or maybe I'm too lazy to pull it down. As I straightened out my hair I looked into the car behind me. There was a couple in a nice Lexus. The guy was wearing shades although it was not sunny. He was on his phone. I guessed it was something important. His view was not straight to the road nor to his better half. He was facing the opposite side. I guessed from the effort that he was putting in that he was not really happy with the conversation. I looked at the lady sitting next to him holding and pressing her forehead in frustration. I just could not conclude what was wrong or maybe my vivid imagination was simply acting up and making me think harder whereas there was actually nothing wrong. The traffic light turned green.
Next I stopped at another traffic light. My inner human "RIGHT" was telling me not to look in the rear-view mirror because it was "WRONG" to see people in a state of unawareness that someone is watching. I murdered "RIGHT". This time there was a middle aged man in a Toyota Corolla. It was difficult to understand what he was upto. He was restlessly looking out of the window. I was wondering if he was looking for an address, or a friend. As the traffic light turned green his face showed a sense of satisfaction as if the green light would set him free. He stopped at the bus stop and picked up a customer. He was a private cabbie.
I do this on and off now - see the rear view mirror. 
It fascinates me.
I dont jump to conclusion about someone's behavior because it is after all a rear-view "MIRROR" image of the person. Does not necessarily have to be correct. I just notice and try to understand the human behavior in its full glory. After all we are ourselves only if we know no one is watching and no one is hearing. The rest of the time what we see and what we let other's see is just a rear view mirror.