Your exercise asks that you produce ethnography. Ethnography is a genre of writing that uses fieldwork to provide a descriptive study of human societies. In this instance, your ethnography will help you see your idea in a real-world setting.
For this exercise, you will do the following:
Choose a setting related to your word picture and scene where people go and where you can sit and observe uninterrupted for at least an hour; some choices to consider might be McDonald's, a restaurant, a gym, etc.
Write down your observations. Try to be objective as you look for manifestations of the idea with which you've been working. Under your objective observation, write an analysis informed by the texts we've read thus far.
Be sure to bring a notepad and take notes. After your observation, you will write the ethnography report.