We discuss the recognition of robot's boundaries. Humans think about psychological boundaries of robots in addition to physical ones while interacting with them. We made two hypotheses regarding psychological boundaries. Firstly, these boundaries are affected by the context surrounding the robot. Secondly, these boundaries are controllable. We conducted an experiment with 60 Japanese males and females aged 18-27. Each participant was told a message that 'slide me slightly' from a robot while the participant was interacting with it. We analyzed the participants' actions and questionnaires so as to confirm where of their sight was considered to be 'me'. From this analysis, we confirmed that our hypotheses are both true.