I do the same thing when I am talking to Chinese people! If you are talking to a foreigner for the first time, these are safe topics: Weather Where they are from Why they are in China/at University/at a party (wherever you meet them). Where do they work/what are they studying? Do they have brothers or sisters? Most foreigners will be happy that you are using English, and they won't judge you, even if you ask them a personal question. However, you may want to avoid these things: How much money do you make? Are you Christian/Atheist/Catholic/etc.? (Better to ask "are you religious") You look fat (don't say it even if it is true). Hope this is helpful!