An Exploration of Multimodal Communication for Developing Extrovert, Ambivert, and Introvert Robot

Robot personality, significantly influences human behavior and communication dynamics. In Humanoid HRI research, the contrast between extroversion and introversion is emphasized. However, many individuals aligning more with ambiversion. Therefore, a comprehensive understanding of robot personality in HHRI necessitates examining the full spectrum, including extrovert, introvert, and ambivert. This study explores nonverbal cues expressing robot personalities and understands how combining introvert and extrovert traits forms an ambivert robot personality. This involves analyzing bodily movements and gestural behaviors corresponding to these personalities. Key nonverbal features include eye contact, proximity to humans, body orientation, head movements, and hand gestures. These findings provide foundational guidelines for enhancing human-robot communication and developing more effective HHRI.