What Do YOU Think These People Are Doing?

IMG_0408.JPGToday, Tuesday, Caleb and I saw these teams of people along 14th street. Each team had odd contraptions on their laps and was studiously looking at traffic. When Caleb and I asked them what they were doing, they wouldn’t answer us.

What do you think they’re doing?
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I think the things in their laps look like kids’ toy xylophones, but these things didn’t make any noise.
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