How does social interaction in crowded public places differ from interactions in other settings?

When in crowded spaces, we frequently engage in civil inattention to minimize interactions.

Explanation:

This is because we tend to only interact with the people we're with, in case we are with someone else, and we engage in civil inattention because we are used to speaking only to the people we know, cause parents usually tell their children not to speak to strangers to minimize the chances of an accident or crime.