Have you ever sat down on a park bench or table in your mall food court (really anywhere in a populated area) and just people watched?
To People Watch (v.): to observe, in silence, the surrounding population’s individualism to obtain their personality traits or overall view of the world.
Truthfully, this is a habit I have been doing since I was little. My mom and I would go to the park, lie out at the beach, or even drink our milkshakes on the sidewalk in front of our house, and just watch people. In some ways, it was humorous; in others, it slowed down the world in such a way that from watching what people did (without judgment) allowed us to understand the world better. You got to see a different side of people, and you also paid attention to people that, because many of our lives are so busy, we would just skip over. It gives a different outlook on things. And thus why I use it, or a version of it, as a marketing person today.