Hide/Seek: Difference and Desire in American Portraiture is the first major museum exhibition to focus on the questions of gender and sexual identity in the making of modern American portraiture, with an exploration of how the push for lesbian and gay civil rights has been reflected in art. Over the centuries artists whose sexuality differed from the norm rebelled by developing new visual ways to code, disguise and express their identities. Included in the exhibit are works by Thomas Eakins, John Singer Sargent, Romaine Brooks, Georgie O'Keeffe, Jasper Johns, Robert Rauschenberg, Andy Warhol, Keith Haring, Catherine Opie. Through Feb. 13, 2011. National Portrait Gallery, 8th and F Streets. NW. Call 202-633-8300 or visit npg.si.edu.