PHYSICAL PRESENCE
If an instructor changes seat assignments once or twice during the semester, each student becomes acquainted with additional colleagues. Consider the entering class of the Maryland State Police Training Academy. Trainees were assigned to their classroom seats and to their dormitory rooms by the alphabetical order of their last names. Sometime later, trainees were asked to name exactly. Larsons were friends with Lees, not with Abromowtzes or Xiernickes,even thouh they were separated by only a few yards.