15. A method for providing emotional state feedback of subjects in a field of view of a see through head mounted display system, comprising: determining an environment and orientation of the system, the system includes a plurality of sensors and a see-through display; identifying a crowd of subjects in the field of view; receiving input from the plurality of sensors mounted on the see through head mounted display device; recognizing actions of the crowd of subjects comprising any of two or more of a posture, expression, gesture, audible expression and word in the input for the subjects in the crowd of subject from the sensors and comparing recognized actions a set of emotional states determined based on recognized actions performed in combination with each other; computing an emotional state for the crowd of subjects as a whole based on the recognized actions; and providing feedback to the wearer indicating emotional state of the crowd of subjects.
15. A method for providing emotional state feedback of subjects in a field of view of a see through head mounted display system, comprising: determining an environment and orientation of the system, the system includes a plurality of sensors and a see-through display; identifying a crowd of subjects in the field of view; receiving input from the plurality of sensors mounted on the see through head mounted display device; recognizing actions of the crowd of subjects comprising any of two or more of a posture, expression, gesture, audible expression and word in the input for the subjects in the crowd of subject from the sensors and comparing recognized actions a set of emotional states determined based on recognized actions performed in combination with each other; computing an emotional state for the crowd of subjects as a whole based on the recognized actions; and providing feedback to the wearer indicating emotional state of the crowd of subjects. 16. The method of claim 15 further including determining a social scenario based on the environment, location and orientation of the system and wherein the set of emotional states is determined relative to the social scenario.