After switching lines and waiting a few minutes for the next subway to pick me up, I enter a wagon. The thing about the subway is that people can't look out the window between stations since you see nothing but a thick cement wall moving past you. They're stuck looking up or down, or reading something.
Nobody looks around at other people around on the subway.
It is the kind of mood you can find in public transportation in any big city. People are shy. Except for me. I look around, and if I catch anybody looking at me, I stare at the person right in the eyes to see their reaction. At the moment, I'm the only one looking at other people.