THEATER
SUGAR Robbie McCauley’s solo show about diabetes and race is a lyrical and stirring journey through the world she found and the world she made, in the theater and elsewhere, while coping with a condition that sometimes sapped her energy but never her spirit. Through Jan. 29. Presented by ArtsEmerson in collaboration with the performing arts department at Emerson College. At Jackie Liebergott Black Box, Paramount Center, Boston. 617-824-8400, www.artsemerson.org
ART Despite its arch and stilted dialogue, Yasmina Reza’s drama, in a production directed by Antonio Ocampo-Guzman, absorbingly frames some knotty questions about how well we really know those people we call our friends. With taut performances by Robert Walsh, Robert Pemberton, and Doug Lockwood. Through Feb. 5. New Repertory Theatre, Arsenal Center for the Arts, Charles Mosesian Theater, Watertown. 617-923-8487, www.newrep.org
