After having eaten at least five times your body weight in food, Harayama seems to be warming up to you a little bit. You decide to reach for something in the buffet and he stops eating to growl threateningly at you.
Answer: Challenge him to an anything-goes martial arts.
Your presence here seems to amuse Rosamund. Even so, there seems to be a dark intensity behind her eyes.
Choice 1: "Say, are you alright?"
Choice 2: "You really have beautiful eyes."
Choice 3: "This is really a lovely place you have here."