Follow-up (conversational analysis) ; Feedback (conversational analysis) ; Indirect communication ; Kommunikation, missglückte; Nichtverstehen; Failed communication; Noncomprehension; Miscommunication; Communication failure ; Misunderstanding ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; Critical period (second language acquisition) ; Alter (Einfluss auf Zweitspracherwerb) ; Age (influence on second language acquisition) ; Ultimate attainment (second language acquisition) ; Near-native competence (second language acquisition) ; AoA; Age of acquisition (second language acquisition) ; Sensitive period (second language acquisition) ; Processability theory; Language comprehension (second language acquisition) ; English