Nothing to Hide
Neil Patrick Harris directs this brief wonder now running at the Signature Theatre on W42nd Street. (Did you know that in addition to being an uber-handsome actor and award show host he's the president of the Academy of Magical Arts at Magic Castle?!) Noting to Hide is a magic show with an even bigger dash of comedy. As a matter of fact, the card tricks -some elaborate- manage to delight, but the chemistr…