Study abroad program (language teaching) ; ELE; Español como segunda lengua; ELSE ; English as a second language; ESL; TESOL ; Glottodidaktik; Lehrforschung; Pädagogische Linguistik; Pedagogical linguistics; Language teaching research ; Pragmatische Kompetenz; Pragmatic competence; Communicative competence ; Second language acquisition (pragm.) ; Zweitspracherwerb (pragm.) ; Interactionist hypothesis (second language acquisition) ; Conversational analysis (second language acquisition) ; English ; Spanish