While at a Minnesota Twins game, I couldn’t help but notice a group of high school girls sitting in the row ahead of me. It was hard not to. Every time the cameras started sweeping over fans, the girls whirled into a state of near hysteria: They shook their glittery signs, screamed, jumped, waved. But each time, the camera never caught sight of them. So what did they do? They started taking pictures of each other. I guess someone had to document their whereabouts that night. My sister and I mused that those pictures would be posted on Facebook within minutes of the final inning.

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