Owning your masculinity likely does not mean what you think I am implying here. It is not the stereotypical "be tough" macho man kind of call to action. For some men this might be their natural masculine expression. When I use the term Masculine Expression I mean feeling comfortable with yourself and not allowing yourself to be swayed by others to change who and how you are and taking a more active role in expressing this to others, whatever it is. It's not about being dominant so much as it is about feeling comfortable with your interests, your personality, your desires as well as holding your own boundaries and being assertive when the situation calls for it.