Wyatt Cenac, the latest addition to The Daily Show With Jon Stewart, is the best reason to see this easygoing romantic comedy about two young African-Americans (Cenac and Tracey Heggins) negotiating a new relationship. The opening scenes are hilariously awkward: the two wake up together after anonymous sex at a party, and Cenac tries to parlay the encounter into a date as Heggins struggles to blow him off. He eventually wins her over with his offbeat humor, despite the fact that she has a rich white boyfriend, and they spend the rest of the day together, enjoying San Francisco as they debate gentrification, rent control, and black identity. The movie’s ideas float atop it like whipped cream on coffee, but the actors’ chemistry makes for a pleasant, unassuming walk-and-talk. Barry Jenkins wrote and directed. 88 min.