Theater and restaurant workers have taken huge economic hits lately, and back before the coronavirus pandemic hit, Anna Blair was a busy member of both industries as an actor and bartender. Now theaters are closed, and restaurants and bars are seeing little traffic. But after experiencing some initial deep worry, Blair came up with an idea for how she wanted to spend her time during this crisis. She calls it Curbside Cabaret Cocktails. People looking for “a jolt of joy” can book her to serenade them karaoke-style — and mix them a drink while she’s at it. The other day, the St. Louis on the Air team stopped by one of Blair’s curbside performances in south St. Louis.