If visiting the textile factory was a part of the introduction unique to Xu Nuo, then wandering around the department store was just for idle chatter.
Because neither of them could afford anything in the department store.
Wang Gen Sheng was purely poor, while Xu Nuo was at a point in time where he had spent his allowance on buying the Double Crab Bun recipe. Mr. Xu was furious and cut off his allowance; if he dug into his pockets now, he might not even have as much as Wang Gen Sheng (who had just gotten an advance on his salary).
Two paupers walking around a department store could only look at things, lingering in the corners to avoid blocking the view of those with money to spend.
During their time wandering in the department store, Xu Nuo basically stripped Wang Gen Sheng of any secrets.
