The way someone carries themselves will catch your eye. It is what comes out of their mouth that will keep you interested. Someone can look confident and smart. Until they open their mouth you can't tell what they think. Some one who is smart, funny, confident, and compassionate is someone I want to spend my time with. Actually that is the type of person I married. Looks got me to the hello, his mind is what kept me coming back for more.
I'll be honest with you. When I first met my wife years ago I thought she was really pretty but I honestly didn't start to get really interested in her til I got to know her. Then I saw that she was funny, and smart, and above all she was genuine. She didn't try to act a certain way, she just was who she was. That's what made me irresistibly attracted to her then, and it's why I still am after 15 years.
Yes, take her out to dinner and watch how she treats the waitress! That's a true test of her character! If she's nice to the waitress, keep her, if she's mean to the waitress get rid of her. This is what dating is all about, finding out what kind of person they are BEFORE getting into a relationship.