I'm completely out in all aspects of my life. I do classroom speaking and LGBTQ ally training panels, I keep a blog (hopefully a vlog soon!), I regularly post on FB, and I've made it clear to my coworkers that they are free to approach me about it or ask questions. I'm not embarrassed talking about it and I don't want them to feel embarrassed asking.
Quite often, I've bumped into an old acquaintance or someone I went to HS with and they'll tell me that someone they know transitioned as well. So far there's been 3 or 4 they consider(ed) close friends, an aunt (formerly uncle), a wife (formerly husband), and two of my coworkers used to work for an SRS surgeon.
Being open has drawn people too me, and more often than not I gain respect for my gender identity that I didn't have until I told the person, "It's ok. I'm open about it." Often there's a noticeable hesitation or discomfort around me. I'm barely passing; most people read me as male on sight. But because I have a very well passing voice, once I start speaking it pushes them to thinking, "Ohhh, stone butch. I get it now." Several times I've had to correct people that no, I'm not a butch lesbian, I'm trans.
I'm a teacher at heart. So I don't mind questions, or even the same questions. My goal in all this is to normalize this as best I can, so that no one else has to go through life thinking trans* is all about the surgery and nothing else, and that life has to be horrible if going out in public like that is even on your radar. And you know the image that comes to mind there. It wasn't until this year that I learned how utterly wrong that image is, and am I ever glad I did.