Role play (language teaching) ; Avatar; Massively Multiplayer Online Role-Playing Game; MMORPG ; Role play (pragm.) ; E-Mail; Voice mail; Chat; Computer-mediated communication ; Play (communication situation) ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; Speech intelligibility (second language acquisition) ; Complexity (lex.) ; Complexity (synt.) ; Lesbarkeit (psycholing.) ; Komplexität (text.) ; Complexity (text.) ; Readability ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English ; Holländisch; Dutch