Hiroki presented our onging work “Social influence and behavioral contagion: A Reddit bot field experiment” at the International Conference on Computational Social Science in Nörkopping, Sweden. This is a field experiment on Reddit in which apparent bot and human user accounts give symbolic awards to users praising the users’ emotional tone, logical argument, moral integrity, or explaining the award resulted from a random draw in a lottery. We evaluate how the different rationales for the award affect the recipients’ subsequent behavior on the platform in terms of volume, sentiment, and language, as well as the further behavioral, emotional, and lexical contagion to other users.