Exit the bathroom and enter the hall. Take a left in the hall and then enter another hall. Take a right at this hall, then take a left to enter another bathroom.
Exit the bathroom. Turn left and then turn right. Turn left and go into the other bathroom. Wait near the sink.
Walk out the door in front of you and turn left. Once you reach the black shelf, turn right and enter the hallway. Turn into the first door on your left and stop once you enter the bathroom.