I have a female friend who owns several womens fashion retail stores and so hires all females. She always asks in a job interview what they do in their spare time, if they answer that they hang out with their girlfriends all the time, doing girly stuff etc then they don't get hired because they end up causing bitchy problems in the workplace. If they answer that they hang out with a mix with guys quite a lot, they're never a problem in the workplace. It's worked for her for many years.