One of the students would speak to a stranger on the street and begin asking him questions pertaining to the local police department. While talking the interviewer slowly moved closer and violated the stranger's personal body space. The person's reaction was then filmed.

According to recently collected facts, there were three basic reactions: (1) He-she slowly backed away as the interviewer got closer, (2) He-she struck a defensive pose such as folding arms, looking down, or even turning to one side, and (3) No reaction, though most people do have some kind of reaction...

According to Mark, most people have this "wall" about 18 inches around them that excludes all people from entering. What the interviewers were doing when they moved closer to the person was violating personal body space, causing them to react.

Steve says, "It's a shame this happens because as our world gets more and more crowded, we'll have to get closer together. Let's all start getting closer together and break down that wall."

Melanie Myers, a Los Angeles secretary, wears the latest fad — a made-to-order sweater with her telephone number knitted on the front — as three girl watchers take note.