Hong Kongers are quite honest when it comes to telling someone what they think of their appearance.
People you barely know will suddenly look at you and say “you’re fat”, “you’re not pretty”, “you have bad skin”.
It’s happened to many of my friends and once/twice to me.
Hong Kongers don’t have the concept of hurting people’s feelings. I can understand and accept a close friend or family member making these kind of comments (if they have good intentions) but from someone I am not very familiar with, I still find it a little hard to accept.