To the handful of DUers who haven't figured this out yet:

[Hugin]

64. My philosophy on the matter...

Which has served me well.

Storming these people with questions serves no one. Because it is new and different to you doesn't mean it is to them. In most cases they've been asking themselves these same questions endlessly for years and in many cases their entire lives. The answer they've arrived at is that their so-called gender is inconsistent with who they are and they want or have begun to reconcile the issue. I will help them in any way I can.

Does this mean I don't have questions? No, it does not. I am a curious human. But, leave the individuals alone. As EarlG says, there's plenty of other channels (some reputable and others not so much) to slake your desire to know.

Does this mean someone should shun them out of fear of offence or discomfort to one's own world view? No, certainly not! For most of these people the identity question has been so all consuming they've had most of the rest of who they are lay fallow and unexamined the entire time. From experience, I can tell you, once they have internalized the solution and are acting on it. They will interact your ear off as they explore who they are and want to be.

Trust me on this, though. Should you be lucky enough to have the privilege of having earned the trust of a transgendered person. One day, they may come to you with a question related to gender issues. If this rarity happens, please, do your best to answer honestly, discreetly, and openly. In the answer you may very well learn quite a bit about... yourself.