The key here seems to be expression vs identity. They're not the same. You can have any identity you like and changing your expression won't interfere. But it's good to be clear about your identity.
I run into this a lot, because the LGBT groups at colleges I work with have in the span of 10 years essentially gone from LGB meetups to about 80-90% non-binary people, some of whom are to me appallingly anarchistic in their approach (ex. "gender doesn't exist") and frankly toxic about pronoun policing etc.
Expression is free. There's no need for a total revision of your identity, pronouns, and all that if you just prefer some modes of expression over others. Take a look at Tilda Swinton, Roan Louch, Ellen DeGeneres, Grace Jones, or Saskia DeBrauw. They all really blur the gender line at times but still don't espouse a trans or non-binary identity. People are more or less used to and accepting of this.
The way I see it is, if you would seem gender-normative to people like this, how well do your expressions really reflect your innate identity? Is the situation warranting a new label, or is a non-binary identity more a philosophical statement on existence vs. essence?
The thing is, how one is seen by society cannot be demanded. If that's desired, ostensibly to match a deeply-held sense of identity, then taking the non-binary route sounds to me like a long, hard battle that you have to really weigh the pros and cons of taking on. There are a lot of 20th and 21st century trans-folk who fought very hard, using medical research and mental health studies conducted at the highest levels of academia, to justify their need for the freedom to fully transition and be legally accepted for who they are, and in most places that battle is still red-hot - and that's just within the binary!
A huge part in all of this is that on one hand you have our society's battle for the evolution of gender roles past sexist social frameworks, and on the other you have those taking the Jacques Derrida approach. If it's a matter of really disliking birth name, secondary sex characteristics, and that sort of thing, that sounds like a good enough reason to look at transition options, especially when for men the next wave of alpha-male is more like 'sweet, sophisticated gentleman'. But I'm biased