His own greeting is limited to a polite incline of the head as he sits, back straight, and while the sweep of his gaze certainly took in the locked display case, no recognition registers on his face. He doesn't care to come to conclusions without a closer examination, and this is not the time. Perhaps a beat longer than someone naturally inclined to talk would have started, Rodolphus says, "Thank you for meeting me."

It's not that it sounds insincere, but it is decidedly perfunctory. He cannot guess Nuala's species, nor her preferences, just yet, but he can at least meet minimal conversational requirements.