It's just a business cocktail party organized by some foreigners! Anyway, no one knows her, so she can just be Shang Chi's human background and attend! Just treat it as an eye-opener!
With Qian Sisi's consent, Shang Chi took her to get styled, put on makeup, and choose an evening gown. After some intense preparation, the two appeared on time at the hotel where the cocktail party was held.
As Shang Chi said, most of the attendees were Americans. Even the people from C City looked very westernized. They were either returned overseas students working in foreign trade or merchants who long dealt with Americans. Though the cocktail party was high-end, it didn't feel oppressive at all.
As a tech geek, Qian Sisi's English wasn't great, but it wasn't bad either. At least she could casually greet those Americans when walking beside Shang Chi.