We're all on auto pilot all of the time. Sometimes we get to where we were going without even remembering how we got there. Today, choose a different route. Go a different way to the way you normally go. Look up instead of looking down. See if you can catch someone's eye. Document it if you like, or just notice what happens.
"We're looking forward to seeing what you notice. A new building or a new street sign? Someone you always pass but have never looked at their face? Maybe capture your findings in some writing or photographs. Or just enjoy the ride... "