“…However, because they see the rest of the crowd at the event as 'us', they interact with strangers differently (in terms of both quality and quantity) than they would do in mere physical crowds where there is no sense of shared identity or psychological unity (such as those at a shopping centre or transport hubs) (Drury et al, 2015;Hopkins et al, 2019;Neville & Reicher, 2011;Novelli et al, 2013). In addition, many of the people who attend these events are connected through digital networks outside the event itself (Billings, Qiao, Conlin, & Nie, 2017;Lacasa, Zaballos, & de la Fuente Prieto, 2016), meaning that at each event there will be a number of other people that they already know, even if just as acquaintances. This creates the conditions for extensive interaction between people who normally belong to different social networks (e.g., geographically, occupationally).…”