English as a second language; ESL; TESOL ; Ethnomethodology ; Ethnopragmatik; Ethnopragmatics; Culture-specific communication ; Vortrag; Recitation; Lecture ; Soziokognition; Social cognition; Discursive psychology; Social psychology ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; Vermeidungsstrategie (Zweitspracherwerb) ; Avoidance strategy (second language acquisition) ; Ersatzstrategie (Zweitspracherwerb) ; Compensatory strategy (second language acquisition) ; Speaker strategy (second language acquisition) ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English ; Mandarin; Kantonesisch; Cantonese; Putonghua; Sinitic; Hakka; Yue; Chinese