"That's - actually an excellent point," he conceded, a bit surprised. It wasn't a purely intellectual, observational exercise, after all; if it had been, any Muggle could have done it. It was rare that he found it easier just to settle down a bit and channel something without thinking about it, but when he had no real knowledge to go on, it was a necessity, really. He ran his thumb along the flat of her palm, and tried to feel something. He couldn't have said whether the resulting sensation was from what he already knew about her - she seemed cheerful, open, a little fearless, sweet, but ... well, too sincere to be entirely so.
Now, if he could have translated that into terms that were recognized as a part of the palmistry canon, he would have something. No real luck there. "Not much in the way of caution, no," he said quietly. "This one - the head line?" He felt a little like he was taking his O.W.L. again. "If I recall correctly, that means you're - enthusiastic?" Well. It sounded right to him.