One of my co-workers is "transitioning" to a woman. What do I do?

So, someone else is doing something to themselves, and you want someone else to tell you what you should do ........mmmmmmmm I don't know... maybe MIND YOUR OWN FUCKING BITNESS

Offer to let her blow you

Bin-there. Best to avoid at all cost. The smallest thing is blow out of proportion. They want attention. That's why they are doing it.

Kick it in the balls while you still can!

tell it you're the reincarnation of amenhotep 111.
.