The salesperson smiled and said, "Miss, you have a very good taste. You know how to pick clothing very well."
The salesperson looked at Qiao Nan with admiration. "You may not know. We, Chinese, are very conventional in our thinking. We feel that it's not auspicious to wear white and light-colored clothing. It's as if we're wearing funeral clothing. Many don't like them. After the goods arrive, they will just be displayed there as they are not easy to sell. I didn't expect the effect of wearing white-color clothing to be so good. It looks so pure."
The salesperson was not trying to praise the cleanliness of that piece of clothing. She was expressing that this piece of white clothing complimented Qiao Nan's style and charisma when the latter wore it. She looked very pure, as if one was looking at crystals.
"Thank you." Qiao Nan passed the other two pieces of clothing back to the salesperson.