I'd agree with the others, the best way to learn is to ask. But you can't just start pestering people, though simply telling them during a conversation that you

I'd agree with the others, the best way to learn is to ask. But you can't just start pestering people, though simply telling them during a conversation that you have questions and are curious has always been the way to go for me. And as long as you're not judgemental and keep an open mind, its informative AND interesting! Like one trans woman I used to play video games with told me she wanted breasts, vocal cord surgery, BUT didn't want to change her other genitals. In her words "[my penis] is one of the few parts of my body I'm comfortable with"! Before I talked to her, i always assumed trans wanted to obtain ALL changes associated with their desired gender!