The timely arrival of a waiter pushing a serving cart saved Gu Jingshen from his embarrassment. Feigning nonchalance, he picked up his knife and fork and methodically sliced his steak. Once done, he transferred the pieces to Shu Wan's plate. "You're too thin, Ms. Shu," he said. "You need to eat more." Shu Wan was, in fact, much thinner than she had been five years ago. Back then, a touch of baby f