Darcy smiled right back at her, finding the whole encounter absolutely adorable. "Mm, it tickles," he agreed, just staying near but letting the two of them become acquainted. He did watch Annie closely; he knew horses very well, having been around them all of his life, and he was particularly familiar with Annie's quirks. He knew what to look out for, to know if she was at all unhappy or uncertain. As far as it was, the horse seemed perfectly pleased with her new friend.