You begin looking out of some narrow vertical windows on a staircase. Turn to your left and dismount the staircase, moving towards the picture of a naked woman on the right. Once you're at that picture, turn slightly right and continue following he railing on your right to the open door. Go though that door and then through the open door in front of you into a bathroom. Move one step closer to in front of the toilet. You're not gonna be straight in front of the toilet, but you're going to be near the front of the toilet, and once you're there, you are done.