I don't even bother, not around my family. My mother, despite not being a weeaboo, is a teacher and lets the school's anime club meet in her classroom. She's entirely immune to anime, hell she even lets me leave my jojo artbook among the coffee table books. The only other family I have is cats, and they're fine too. And all of my friends are massive weeaboos as well, so it works out quite nicely.
I do still hide my powerlevel outside of my immediate group, however.