[Funny that the hunter he might choose to frown out just happens to be one of THE top hunters, from a well-known family and pretty much trained since he was a child to be the best hunter. He notes Yukine's look and pauses in wherever he was heading, frowning back at him - more thoughtful than anything else]
Were you lost? [You have that look... but then, he's a little tensed in the shoulders, waiting. Usually appearances can be deceiving, after all. In general, Arthur was one who was overly trusting, though, always wanting to believe the best. Bad habit, his father used to say.]