Yan Yan had face blindness; she remembered the clothes she designed but had no impression of this girl at all.
The girl asked Yan Yan for a business card, and Yan Yan rejected her without a second thought.
It wasn't that Yan Yan was unwilling to give one; she simply never considered herself a "business person" who needed business cards.
When she saw the girl approaching again, Yan Yan tucked away all her previous hostility and very amiably explained that she was now living in Paris for the most part, and if anyone needed to contact her, they could call the Maison Yan II studio in Paris since her sister-in-law frequented the studio there.
Yan Yan deliberately emphasized "Paris," smart as this girl was, she might soon guess that Yan Yan was the chief designer for Y·Y.
Yan Yan might be stirring the waters, but she didn't really care much.
So what if they guessed right? She was about to make her grand entrance soon anyway, and letting a little information slip had its benefits.