Abstract
In this study, we argue that the extent to which a robot is persuasive depends on the way a persuasive message is embedded in the robot’s other behaviors. In the current study, in which a robot serves water at a large public event, we find that the same robot utterance, namely skål (cheers) when serving water, is received very differently depending on whether the robot is oriented to the user or not. In particular, if the robot gazes at the user while saying skål, almost all users drink immediately, whereas only 44.5% of the people drink if the robot is looking elsewhere. Similarly, the effectiveness of a water-related joke as a persuasive means depends on previously established mutual gaze. Thus, gaze and speech behavior have to be coordinated to improve the robot’s persuasiveness in the wild.
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Acknowledgments
We wish to thank Selina Sara Eisenberger and Matous Jelinek for their help during the experiments. This project was supported by the Innovation Fund Denmark in the framework of the SMOOTH project, which we gratefully acknowledge.
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Fischer, K., Langedijk, R.M., Nissen, L.D., Ramirez, E.R., Palinko, O. (2020). Gaze-Speech Coordination Influences the Persuasiveness of Human-Robot Dialog in the Wild. In: Wagner, A.R., et al. Social Robotics. ICSR 2020. Lecture Notes in Computer Science(), vol 12483. Springer, Cham. https://doi.org/10.1007/978-3-030-62056-1_14
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