Call For CHI2003 Workshop on Subtle Expressivity For Characters And Robots
Humans, both consciously and unconsciously, use subtle expressions to communicate their emotions and intentions through variations of the gaze direction, pitch of speech and gesture speed. They form their own class of communication acts. Embodied characters, including robots, need to use subtle expressions to become believable communication partners.
The design and evaluation of subtle expressivity are challenges for designers and researchers of embodied characters. How do the subtle variations in expression influence the interaction? What types of subtle expressions are most important for the design of interactive media? How can the effect of the expressions be reliably measured?