This study analyses whether social standings of interlocutors (a student and a professor) and linguistic forms embedded into head speech acts of requests affect the perceptions of Russian learners of English as a foreign language about the appropriateness of requests. By completing an elaborated semi-oral Discourse Completion Task, twenty American undergraduate students produced eighty request utterances. The most frequent and consistent request patterns were then used to form five different types of head speech acts. These five head speech act forms were then evaluated by thirty-nine Russian EFL learners. To do the evaluation, Russian subjects completed an acceptability questionnaire that involved a ten-point Likert-type evaluation scale and a written protocol. The findings of the study partially support the hypothesis that Russian EFL learners evaluate more conventionally indirect request patterns as more appropriate when they are aimed at the professor and as less appropriate when they are aimed at the student.