I tend to be entranced by creativity and quirkiness, but the laws of attraction are way too mysterious for me to want to focus too much on characteristics. My only requirement is that you be a kind and loving person.
In terms of first meetings, I believe that if we enjoy each others company, engage in some good conversation, and have some things in common, it's usually worth a second meeting. After all, how can you "know" that someone is or is not right for you when you barely know who they are? A first impression is just that. A first of anything should be a starting point, not an ending. : )