“…• interactions with host families in homestay settings; see, for example, Diao et al, 2018;chapters in DuFon and Churchill, 2006;Kinginger, 2015;Kinginger et al, 2016aKinginger et al, , 2016bLee and Kinginger, 2016;Lee et al, 2017;McMeekin, 2017;Pryde, 2014;Shively, 2015Shively, , 2018bWilkinson, 1998Wilkinson, , 2002; • • leisure interactions with local or international peers in halls of residence and student lounges see, for example, Behrent, 2007;Diao, 2014aDiao, , 2016Hasegawa, 2019;Kinginger and Wu, 2018; • • conversations with language partners see, for example, Bryfonski and Sanz, 2018;Fernández, 2013Fernández, , 2016Fernández-García and Martínez-Arbelaiz, 2014;Kasper and Kim, 2015;Kurata, 2011;Ning, 2020;Shively, 2015Shively, , 2018b; • • service encounters see, for example, Diaz et al, 2018;Ning, 2020;Shively, 2011Shively, , 2018b; • • online interactions see, for example, Back, 2013;Diao, 2014b;Kurata, 2011. This selection of settings needs some comment, as it clearly does not represent the full range of SA "domains of practice". Partly for reasons of access and audio quality, but also perhaps seeking domains where participants are most likely to make sustained interactional contributions in L2, there is a focus on small group or dyadic interaction, and on fixed settings (no parties, no evening outings or touristic excursions).…”