"It's just stall after stall, he keeps doing this. The middle-aged man running the next stall is getting impatient.",He first looked at the shelf of porcelain. He just glanced at some things, but he picked up a few and examined them closely, shaking his head from time to time, occasionally nodding.,Mr. Wu smiled without making a sound. Liu, the shopkeeper, had a smile on his face. The old man was testing him, wasn't he。