This document discusses research methods for observing physical traces and environmental behavior. It describes observing physical traces as systematically looking at physical surroundings to find reflections of past activity. Traces can be unconsciously or consciously left and can provide insights into how an environment is used. The document outlines different recording methods like diagrams, photos, and counting. It also discusses observing environmental behavior, including recording people's activities, relationships, and how the physical setting supports or interferes. Qualities of observation methods and different recording devices are explained.