Progress is described on a new approach to improve man-machine communication in order to significantly expand and diversify the capabilities of the computer interfaces that people use. The objective is to design computer processes that can assimilate particular aspects of dialogue between people, then transfer the processes into man-machine communication. Nine aspects of human ability to communicate are selected and studied in detail, according to new methods of data collection described in the report. Explicit observational instructions also are given. (Author/SK)