Turn around 90 degrees. Exit out of the bathroom through the doorway. Turn right at the water fountain in the first entryway to the right. Pass to the left of the marble table. Head towards the base of the stair case. Stop just before you reach the bottom of the staircase.
Walk to the water fountain and go right. Walk to the round white marble table in the middle of the room and go left. Walk to the stairs and stop at the bottom without going up.
Walk towards the water fountain and then pass through the opening to your right. Turn left and continue to the base of the stairs leading upwards that's ahead of you and to your right.