In the last 30 years, blackness has migrated from the margins of American popular culture to its center. Right now, a bounty of television, movies, and music engages with the question of how people signal to each other that they’re down with blackness. And it isn't just white people doing the signaling. It's black people too, albeit in a different way. We’ll dig into Netflix’s new show “Dear White People,” and television and film from the 1980s and 1990s and try to understand: what does it mean to perform blackness?