When you sit down in public transportation, you are facing a certain direction, usually right towards other people. Those who stand or sit in your line of sight become your entertainment. You glance at each other frequently and watch each other stare at others. I’ve begun to think that the reason so many people fall asleep on the train is because they close their eyes to avoid this game of eye contact and they have their eyes closed for so long that next thing you know, they’re neck collapses from unconsciousness.