See: COME ALIVE.
{v.} 1. {informal} To become alert or attentive; wake up and look alive; become active. * /When Mr. Simmons mentioned money, the boys came alive./ * /Bob pushed the starter button, and the engine came alive with a roar./ 2. To look real; take on a bright, natural look. * /Under skillful lighting, the scene came alive./ * /The President came alive in the picture as the artist worked./