I have worked for female owned managed and run companies, in LGBT and mainstream  businesses, both times as a token but  tolerated male. 
Everything is  personal. 
Joking was frowned up unless it was related to castration of men. 
Never ask where anybody is from. Seriously.  That is a crime.
Never say anything not in full  100% of support feminism, socialism, liberals and about the oppression of women.  Keep your mouth shut. Be careful about what newspapers you read at work. 
Never ask why there is always one female crying in the staff room every morning. 
Never stand up for yourself from male directed insults, groping, grabbing, blatantly sexist put downs.  You will only be told that because you are a man  its your turn.