Facing the bathtub, walk to the left towards the closed brown doors. Taking one step left, walk up the two stairs i front of you keeping the left end of the bathtub on your right and walk towards the white bathtub to the left. Once you're standing next to the kind of white bathtub to the left, you should see two stairs in front of you again and then two podiums and then another bathtub on the left, walk up to the podium on the left. Just before you reach it, stop. On your left should be a bathtub with a window above it, in front of you should be two podiums, one with a sink and one with something else. Once you're standing there, you're done.