“…The textual roles include introducing a new turn, marking transitions (topic shifting), initiating or terminating a digression, presenting a reason or explanation, introducing self-correcting, direct speech, floor holding, and fillers. The interpersonal roles are composed of conveying an attitude or reaction, showing the speaker's reluctance, and achieving sharing and cooperation between the speaker and the listener: saving face, expressing and checking comprehension, and verification (Liu, 2017;Truong, 2022).…”