A post-observation meeting is a type of speech event of teacher training that takes place within the institutional/educational settings. In this meeting the supervisor offers support and advice about teaching for the teacher's professional development. The asymmetrical relationship between the supervisor and the teacher in this meeting makes it sensitive and fragile. Due to potential anxiety and tension, of both teacher and supervisor, they tend to use face saving practices, represented in politeness strategies, to save self-representation during this spoken institutional interaction. This study attempts to present a report of an open-ended questionnaire reviewing the opinions of the supervisors on the use of politeness strategies in post-observation meetings. Upon analyzing the questionnaire qualitatively, the findings revealed that the more institutionally powerful supervisors manipulated politeness strategies intentionally to save the face of all participants for different reasons. Analysis highlighted several themes such as providing support and improvement, sharing experience, equality and respect, etc. Finally, the supervisors provided their advice to improve post-observation meetings for more constructive feedback.