Being gender variant is wonderful. There is nothing wrong with expressing the richness of your personality in all kinds of ways including dress.

Being either in the gender binary (which is where cis people and transsexuals are) or gender fluid is an entirely different thing. Real gender queerness is not only about expression and neither is being of a fixed gender but both have an inner configuration component that is like the basic flavor of each individual human being. Consider the something like tomboy and a crossdressers. Both expand on their personal expression sometimes beyond acceptable societal limits (which are completely arbitrary) but the basic human flavor remains true to their birth gender.

Gender fluidity is truly incorporating both genders in a Milton Diamond kind of way. There is a biological basis to this I believe.

So much fodder for some real conversation.