“…In other words, individuals who have been recently pleased by the robot may feel the urge of behaving nicely with it or, at least, abstaining from revealing a loss of confidence in the robot’s abilities, as commonly observed in human-human cooperative settings ( Bartlett and DeSteno, 2006 ; Berns et al., 2010 ). Our findings are consistent with recent evidence revealing the emergence of pro-social attitudes toward robots in adults ( Connolly et al., 2020 ; Kahn et al., 2015 ; Kühnlenz et al., 2018 ; Siegel et al., 2009 ) and children ( Beran et al., 2011 ; Chernyak and Gary, 2016 ; Martin et al., 2020 ; Zaga et al., 2017 ). Moreover, they can provide a pro-social interpretation of recent results revealing over-trust with the instructions of faulty or unreliable robots ( Aroyo et al., 2018 , 2021 ; Robinette et al., 2016 ; Salem et al., 2015 ).…”