We present an eye-tracking study where we augment a Massive Open Online Course (MOOC) video with the gaze information of the teacher. We tracked the gaze of a teacher while he was recording the content for a MOOC lecture. Our working hypothesis is that displaying the gaze of the teacher will act as cues in crucial moments of dyadic conversation, the teacher-student dyad, such as reference disambiguation. We collected data about students' video interaction behaviour within a MOOC. The results show that the showing the teacher's gaze made the content easier to follow for the students even when complex visual stimulus present in the video lecture.