Facing the painting of a guitar player, turn to the right, you'll see a staircase through the door. Walk up just one stair on that staircase, turn 180 degrees, you'll be looking back from the doorway you came. Instead of going there, turn left and go through the open glass doors on your left. Once you're through, turn left again, you'll see a white couch on the left, some grey couches on the right between them. Keep going straight all the way to the brown counter top in the distance which sits next to a barbecue. Once you're standing just in front of the sink, you're done.