I think that in general, you need to be happy and confident with yourself and your life. If you are unhappy with your life and with yourself, it will show on your face. If you are happy then smiles come naturally. No one wants to be with Donald Downer, so a man that is happy and content is one that women will gravitate to. The secret is to work on yourself first, get your own happiness together and then find someone to share it with you.