Someone has just finished telling him how lovely the building is; he thanks them politely, smiling, and turns to the next person.
"I can't tell you how much this place means to me," she says earnestly. "It's - not just that it's beautiful - it really shows me what architecture can do. It's the most inspiring thing I've ever seen."
He grins radiantly at her as he shakes her hand, happier by far about this than any previous encounter. "I'm so glad you like it!"
"Thank you," she says, and then is overcome by shyness and has to retreat to the buffet table. He gazes after her, still smiling, clearly touched.