This is a very interesting thread!
One thing I feel very lucky on is that I am simply me, my identity is based on my childhood, not against it. Every part of my personality is directly based on the things I went through and want to achieve. Yes, I want to pass as a beautiful woman, but at the same time, my career goals haven't changed, my dreams haven't changed, my personality will never change (but I'll just be more "confident"), and really, I plan on being the same person. Personally, I believe that's when identity seems to be the strongest, when someone isn't trying to be totally someone they're not, but simply trying to express themselves. It truly is depressing to look back on what we've missed; not only have I completely missed "girl" things, but I was a complete loser in guy form as well, and I never, ever achieved popularity or friendship in my natural male role to boot. It's what's directly inspired me to choose certain career paths and to an extent certain lifestyles that I have; for what I've lost, I have plenty more to accomplish, and I think that's the attitude that always helps me through.
With that being said, you have to realize that mingling with other ladies isn't usually the "big point" of being a different gender. Gender identity is usually more associated with the partner that a person wants to attract, and the personality deep inside they want to show off. If you feel like a girl, you must have some girl interests and thoughts in that noggin - when socializing, just talk about your past and your interests. With me, I have plenty to talk about, I'm a composer, author, screenwriter, avid food-and-drink fan, and I love to talk about impacting films or musicians, albums I enjoy, boys I enjoy, ect ect. If someone out there doesn't think those subjects are interesting or appropriate, they can take a hike IMO.
But to be honest, I've never really found a great divide between my boy and girl side, I'm simply "trying to be me" as my favorite singer and songwriter, Jade Valerie, would put it -
But yeah, that's my outlook. It may be different for someone who's spent decades hiding their true personality, using alter-egos to simply survive financially and emotionally, I'm not even 30 yet! So for me, transitioning is very physical to me and hardly anything more, except when it comes to sexual activity and simply being more "cute and confident". Physical looks are such even a pseudo-spiritual importance to me, I'm of Native American heritage and with natives and tribal peoples, things like hair, accessories, and identity factors are such an importance to the pride and soul. I have a very deep belief that appearance should reflect the personality, and I just can't wait for the day that I'm finally able to get my hair grown out again, and to get a few facial improvements - I do want a very majestic, accomplished look about myself!
And even physically, I feel like I'm very conservative in my transition. My main goal is to have a subtle combination of features that showcase me as a soft, caring, but ambitious personality; something that will instil a female nature to my look. Once I accomplish this using surgical techniques (forehead, nasal repair, possibly a few other small touches) as well as improvements to my skin, all I feel will be really "needed" is a majestic hairstyle, clothes of my choice, and confidence I'm confident I will get. Even as a girl, I still want a strong look that demands respect in some aspects - essential for my career. Not looking for a fake or wonky look!