a light at the end of the tunnel
One thing that every subway rider in Chicago (and pretty much every major city in the world), myself included, seems to do is step out onto the blue safety surface (which isn't blue in this photo since this is a black and white, but who's counting) to stare down the tunnel and look for lights. The lights mean the train is about to arrive.
It's one way to tell the tourists from the locals, to see if they look the right direction for the train lights. The stops downtown in Chicago on the red and blue lines are extremely close together so you can actually see the lights in the distance when the train is at the stop prior at a few of them.
The funny thing is, that even after the train is spotted, people will continue to look in that direction (as about half of the people in this photo are doing) until it passes and then they'll still follow it.
40/50 on Score Me! (8.0)
39.5/50 on Rate My Candid Captured Photo (7.9)