Right now you are at the entrance door of the store room. Go straight from the place you are standing until you reach an exit. Get out of that exit door and then you will enter into the washroom. Go straight until you reach another exit point. Go straight and get out from the exit point until you reach a door with hooks on your left side. Go straight and step out of that room through the exit door and stop. That will be your end point right in front of the exit door and mirror on the left.