“…Moreover, one of the main selling points of MRP is that mobility allows for informal and unplanned interactions, however, as Tsui et al point out, 'walking and talking' using the robot is difcult, as the fat screen does not allow local users to see the remote user from the side [41]. In addition, the speed of the robot is slower than walking speed, and driving takes the remote user's attention away from the interaction [7,41]. Another issue, is that remote users do not have clear awareness of their presence in the local environment, such as not being able to tell if they are being too loud or if the robot is causing obstructions to local users [2,21,22,28].…”