What is it like to meet Chinese people in a foreign country?

I went to Vietnam the year before last and stayed at a youth hostel in Hanoi. A Singaporean and a German came together. After greeting each other, the Singaporean friend started chatting with me in Mandarin. Everyone packed up. We went to the lobby downstairs to sit and drink beer together. The Singaporean and I kept talking in Chinese, and a Taiwanese at the next table also joined our chat. All three of us spoke in Chinese. The German next to us was particularly strange. asked us a question, he said: You three are from different places (countries), why do you speak the same language? I knew very well in my heart that they didn’t want to have anything to do with China, so I consciously didn’t say anything, and they didn’t say anything either. The atmosphere fell into a strange embarrassment, and the three of us knew it, but we didn’t understand the style (maybe) The Germans (Germans don’t read) just waited for us to explain, and then the Singaporeans said quietly: Because we are all Asians!