Not all women wear makeup
Not all women wear lingerie
Not all women women paint their fingernails / toenails
Not all women wear dresses or skirts
Not all women go out shopping
Not all women wear high heels
Not all women have big breasts
There is no all-inclusive definition of what a woman is. Not even what's between her legs. We've proven that one ourselves.
I believe it's up to us to make our own definition of the female aspects of our personalities, without following a guideline. Doing what other women do doesn't make you a woman.. your true gender is however you feel inside.
The best way to feel good about yourself is being yourself and doing things you enjoy without needing anyone to tell you that you are doing the right thing. I would know, it's far too easy to fall into this trap of being dependent on other's opinions. When you're able to cast that aside is when you really discover yourself and what makes you happy.