He's taken off guard by the request, and it shows in the way he hesitates, looking a bit blindsided. An Elf, offering to talk about anything he might wish to, and letting him choose? It's almost too much to hope for.

"I don't suppose," he says shyly, at last, "you have any happier tales of the Elves you might be willing to tell? Or any - any songs, perhaps?"