The present study sought to cast light on differences in strategies of compliment responses used across Persian and American English. For this purpose, 110 participants, under three groups of Persian native speakers, American native speakers, and Persian learners of English, answered a Discourse Completion Test (DCT), followed by a semi-structured interview with the Persian learners of English to cross-check the findings of the DCTs. The collected responses from the DCTs were coded at macro and micro-levels. Moreover, a macro-level of Persian cultural schemas was used for the Persian groups. The chi-square test revealed the independent performance of the three groups. Judged by the written DCTs while performing in English, the learners’ responses displayed cases of utilizing the native Persian cultural schemas. More specifically, the English learner respondents employed different instances of ta’arof and shekaste-nafsi . Confirmed by the interview, such failures resulted from insufficient exposure to the American English culture and more importantly from their lack of instruction and awareness of cross-cultural pragmatic differences.
