The first step to becoming a real-life Prince Charming is to always look your best. Prince Charming always had perfectly-styled hair and sleek clothes. You never saw him walking around with bed head in sweatpants!
Make sure you are always showered, have your teeth brushed, are clean-shaven, have your hair styled wear nice smelling deodorant, aftershave or cologne. You don't always have to dress up, but be sure to always wear clothes that are in good repair and are clean and not wrinkled. Trust me, your lady will notice and be impressed!