How many times have you heard some variation of these things? Feminine women don't drink! Feminine women don't swear! Feminine women only wear dresses and skirts!
These things are all well and good, but these things are not, in themselves, feminine. Taking this kind of advice -- eliminating drinking, refusing to swear, and only wearing dresses -- and expecting to become truly feminine is the equivalent of putting on a white coat and expecting to become a doctor. Sure, most doctors wear white coats; but while that is a marker of their status, it isn't what makes them a doctor. And neither do these superficial things make a woman feminine. Perhaps even more importantly, just as a doctor is still a doctor without a white coat, a feminine woman is still a feminine woman in pants with a glass in her hand.
Then what is femininity?
Femininity is a mode of being. It is more action than presentation. Does that mean you should ignore advice to not drink, not swear, and to wear dresses? That's up to you. The wonderful thing about femininity is that it doesn't require faithful observance to specific personality traits. Maybe you're a beer connoisseur, maybe you think dresses aren't practical, maybe you don't want to censor yourself when it isn't necessary. You don't have to, in order to be feminine, as long as you are able to fulfill the most important parts -- the things that are not superficial. Be positive, empathetic, kind, supportive, submissive, open, and loving.