The answer to people who are unable to treat women fairly shouldn’t be for them to pretend they are talking to men. The answer is for them to be removed from their position and replaced with someone fit for the job.
“But definitely don’t hit on her. It looks like she could kill you with the chair you’re sitting on.” should say “But definitely don’t hit on her. This is a meeting, not a date.”.
You shouldn’t avoid doing something inappropriate because you are afraid — you should avoid doing it because it’s the wrong thing to do.
If you have to sit down in a meeting and think “Wow, she’s nice, I don’t know how I’m going to control myself here…. I’ll have to pretend she’s a man!”…. Then you need to resign.