  The deployment of social robots in real-world scenarios is increasing,
supporting humans in various contexts. However, they still struggle to grasp
social dynamics, especially in public spaces, sometimes resulting in violations
of social norms, such as interrupting human conversations. This behavior,
originating from a limited processing of social norms, might be perceived as
robot-centered. Understanding social dynamics, particularly in
group-robot-interactions (GRI), underscores the need for further research and
development in human-robot-interaction (HRI). Enhancing the interaction
abilities of social robots, especially in GRIs, can improve their effectiveness
in real-world applications on a micro-level, as group interactions lead to
increased motivation and comfort. In this study, we assessed the influence of
the interaction condition (dyadic vs. triadic) on the perceived extraversion
(ext.) of social robots in public spaces. The research involved 40 HRIs,
including 24 dyadic (i.e., one human and one robot) interactions and 16 triadic
interactions, which involve at least three entities, including the robot.
