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Yet, this \u201cpre-beginning\u201d phase, well documented in the case of human-human interactions, is not an interactional vacuum: It is where interactional work from participants can take place so the production of a first speaking turn (like greeting the robot) becomes relevant and expected. We base our analysis on an experiment that replicated the interaction opening delays sometimes observed in laboratory or \u201cin-the-wild\u201d human-robot interaction studies\u2014where robots can require time before springing to life after they are in co-presence with a human. Using an ethnomethodological and multimodal conversation analytic methodology (EMCA), we identify which properties of the robot's behavior were oriented to by participants as creating the adequate conditions to produce a first greeting. Our findings highlight the importance of the state in which the robot originally appears to participants: as an immobile object or, instead, as an entity already involved in preexisting activity. Participants\u2019 orientations to the very first behaviors manifested by the robot during this \u201cpre-beginning\u201d phase produced\n            <jats:italic>a priori<\/jats:italic>\n            unpredictable sequential trajectories, which configured the timing and the manner in which the robot emerged as a social agent. We suggest that these first instants of co-presence are not peripheral issues with respect to human-robot experiments but should be thought about and designed as an integral part of those.\n          <\/jats:p>","DOI":"10.1145\/3575806","type":"journal-article","created":{"date-parts":[[2023,1,5]],"date-time":"2023-01-05T13:37:32Z","timestamp":1672925852000},"page":"1-31","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":15,"title":["From Inanimate Object to Agent: Impact of Pre-beginnings on the Emergence of Greetings with a Robot"],"prefix":"10.1145","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0357-8946","authenticated-orcid":false,"given":"Damien","family":"Rudaz","sequence":"first","affiliation":[{"name":"Dept. of Economics and Social Sciences, Telecom Paris and Institut Polytechnique de Paris, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7363-044X","authenticated-orcid":false,"given":"Karen","family":"Tatarian","sequence":"additional","affiliation":[{"name":"Institute for Intelligent Systems and Robotics, Sorbonne University, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6158-4818","authenticated-orcid":false,"given":"Rebecca","family":"Stower","sequence":"additional","affiliation":[{"name":"Division of Robotics, Perception, and Learning, KTH Royal Institute of Technology, Sweden"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0777-0599","authenticated-orcid":false,"given":"Christian","family":"Licoppe","sequence":"additional","affiliation":[{"name":"Dept. of Economics and Social Sciences, Telecom Paris and Institut Polytechnique de Paris, France"}]}],"member":"320","published-online":{"date-parts":[[2023,4,14]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00146-015-0631-6"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1080\/19463014.2019.1567360"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.2044-8309.1996.tb01109.x"},{"key":"e_1_3_3_5_2","volume-title":"Proceeding of the 1st international workshop on Designerly HRI Knowledge. 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