Julie Curtiss does strange things with hair. In past work, she’s covered faces, legs, animals and food with layers of wavy locks, making her subjects both repellant and slightly sinister. Here, in a piece at the FLAG Art Foundation’s summer group exhibition, a straightforward hairstyle – middle part with straight bangs – signals menace. Titled ‘Fangs,’ this hairdo is less scary than Medusa’s but might give a new acquaintance pause. (On view in Chelsea through Aug 12th).