On your own or with a classmate, visit the college library, a mall, or anywhere else on or off campus people gather. For about 10 or 15 minutes, observe the nonverbal cues that people give each other:

Does the librarian smile at students? What is the body language of students gathered in groups? When you leave the venue, jot down as many of your observations as you can. Notice things such as changes in nonverbal communication when someone joins a group or leaves it.