1. A see through head mounted display apparatus, comprising: a see-through, head mounted display; a plurality of sensors cooperating with the see-through, head mounted display to detect at least one of audible and visual behaviors of a subject in a field of view of the apparatus; and one or more processing devices in communication with the see-through, head mounted display and the sensors, the one or more processing devices: monitor the at least one of audible and visual behaviors of the subject by receiving data from the sensors; receive supplemental data relating to an emotional state of the subject from a second see-through, head mounted display also monitoring at least one of audible and visual behaviors of the subject; compute an emotional state of the subject based on the at least one of audible and visual behaviors monitored by see-through, head mounted display device and the supplemental data received from the second see-through, head mounted display; and provide at least one of audible and visible feedback to a computing device indicating computed emotional states of the subject.