I know for a fact that I (and just about everybody) release drops when I talk, I sometimes see the little droplets gleaming in the bright Airbus sun.

When the FA comes into the cockpit, they are standing directly behind you, elevated, and talking in your direction. In other words, spitting down right on you. I wear my mask while they're up there, I politely ask them to keep theirs on too, and explain this if needed. So far I haven't been called any names (to my face) but wouldn't care if they did.