You know, there's one thing I keep fraking up.
I know 2 transgirls, one named Toni, the other, Alex. I love these girls, they're great. But my tongue keeps slipping. They both still present as male, for safety reasons, so I often find myself calling them he. But I most certainly do
not think of them as guys! It's very confusing... I happen to be a fairly visual person, so when a girl presents as male, I make mistakes. Today I finally stopped myself before I called Alex a he and called her a shy. I was quite proud. I wish she'd use her other name, Ashley, though. It would make things easier for me, haha (even though Alex is an angrogynous name).
Fortunately, most girls at Susan's present female (at least in their pictures), so there aren't any slip ups.

Do you girls ever slip up and accidentally call FtMs she?
I haven't yet... Most of the ones I know are so butch calling them she would just look stupid on my part.