Triple Espresso. Triple Espresso is like the first few minutes of a dinner-theater production, the part where the emcee comes out asks how many people in the audience are from Minnesota. You grin and clap and put up with it because you've had some food and a couple of drinks and you know there's singing and dancing to follow. But with Triple Espresso, the introduction doesn't stop. It goes on and on. More jokes, more audience participation, more sing-alongs. This is neither a play nor genuine comedy, but chain theater, the theatrical equivalent of Starbucks. Presented by Denver Center Attractions through October 3, Ricketson Theatre, Denver Performing Arts Complex, 14th and Curtis streets, 303-893-4100, www.denvercenter.org. Reviewed May 13.