Gesture communication ; Interference (nonverbal communication) ; Interference (pragm.) ; Ethnopragmatik; Ethnopragmatics; Culture-specific communication ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; Transfer (second language acquisition) ; Transfer (Zweitspracherwerb) ; Cross-linguistic influence (second language acquisition) ; Interference (second language acquisition) ; English ; French ; Spanish