He laughs lightly, like the old, wise, mysterious and dignfied creature he is.]
What I meant to say - poorly, I see - is that nights like these are well suited for contemplation, are they not? It seemed to me you were in deep thought.
[And naturally he thought to intrude on that, because who doesn't want company when they're stargazing? That, or he suspects she might be locked out, and he wants to check on her.]