Put the fireplace on your right and the staircase on your left, then walk forward. Continue past the double doors on your right, and then enter the archway on your right near the end of that room.
Turn around and move down the hall past the tables. Turn right and wait in front of the water fountain.
Walk past stairs on the left. Walk past buffet table on the right. Make a right opposite the round table on the left. Wait at the water fountain.