If there's one thing I've learned about Jane Austen, it's that every word means something. I've read that she was very careful about her finished product - juggling a word here, a phrase there, to get the balance just right, to convey some piece of information in the most succinct way, or to create exactly the impression she wanted to at that moment. She didn't do anything by accident, especially in such instances, where she obviously uses a concise lexicon of personal features (heart, manners, complexion, temper etc.) and attributes (open, affectionate, ill-disposed, romantic etc.) with a precision and conciseness I've never come across in any other novelist in the English language.