Be more attractive by being yourself more
Keep it real. Well, realish. Most people make special efforts with those they're attracted to and that's fine, but don't fake it completely. I knew a woman who would pretend to have done all kinds of things she hadn't if the guy she was with expressed his interest in it: "Oh really? I love football/scuba diving/19th century Patagonian stamps too! What a coincidence; we were obviously made for each other!"
People will know if you are faking it to that extent. Being comfortable within your own skin is attractive and that means having your own point of view, likes and dislikes, and ideas and interests.