He Jieyu, although has never worn a cheongsam herself, knows her mother has always been a regular at Red Sleeve Lán, custom-making several cheongsams there every year.
So, at this moment, her brain quickly processes: Zhang Jingdong bringing this cheongsam must be intended for Yan Ning, and since a cheongsam has very special significance compared to ordinary clothes, him giving it to Yan Ning couldn't be a careless mistake; it's very likely they had agreed upon this before.
But why would Yan Ning be willing to accept the cheongsam he gives?
Though it's clear they are both interested in each other, just from their status when they met last night, they definitely aren't together yet.
Right now, it should be Zhang Jingdong chasing after Yan Ning, with Yan Ning still hesitating.
Thinking of this, He Jieyu instantly has an idea.
Since Zhang Jingdong wants to pursue Yan Ning, he definitely needs some immediate information about Yan Ning, and she happens to have that information.
