A great paper just came across my feed from Edward Reynolds (bias, he was a CA/MCA mentor for me).
He describes the ways that powerlifters orient to seeing-the-lift and being a team. He also uses online data to investigate the enactment of membership categories such as “creep” in the gym environment.
You’ll find the article in Journal of Pragmatics:
Reynolds, E. (2017) Description of membership and enacting membership: Seeing-a-lift, being a team. Journal of Pragmatics June, 2017 (online)