Cultural Norms and Interpersonal Relationships: Comparing Disclosure Behaviors on Twitter Anju Punuru Indian Institute of Technology, Kharagpur Kharagpur, India anju.punuru@iitkgp.ac.in Tyng-Wen Cheng Brigham Young University Utah, USA tschen01@byu.edu Isha Ghosh Rutgers University New Jersey, USA isha.ghosh@rutgers.edu Xinru Page Brigham Young University Utah, USA xinru@cs.byu.edu Mainack Mondal Indian Institute of Technology, Kharagpur Kharagpur, India mainack@cse.iitkgp.ac.in ABSTRACT This study performs an initial exploration of cultural differences in social media disclosure behaviors. We focus on what U.S. and India users disclose about interpersonal relationships on Twitter, a popular social networking platform that has gained enormous traction outside the U.S. We developed a taxonomy of words representing interpersonal relationships and then collected all tweets containing these words (~4.5 million tweets) uploaded from India and the U.S. over a one- month period of time. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the owner/author(s). CSCW '20 Companion, October 17–21, 2020, Virtual Event, USA. © 2020 Copyright is held by the author/owner(s). ACM ISBN 978-1-4503-8059-1/20/10. https://doi.org/10.1145/3406865.3418341 Poster Presentation CSCW '20 Companion, October 17–21, 2020, Virtual Event, USA 371