As a non-Chinese person in China, a word you’ll hear quite a bit is 外国人 (wài​guó​rén), which means foreigner, foreign national or alien. Some people like pointing out any foreigners they see, and they might say or shout 外国人 at them, assuming they won’t understand.

Me in front of the Old City Wall in Zhaoqing / 我在肇庆古城墙前

外国人 [外國人] (wài​guó​rén) could be translated literally as “outside country person” or “foreign nation person”. A slang version is 歪果仁 (wāi​guǒ​rén) which literally means something like “slanted fruit benevolence” or “askew results humaneness” [source].

When Chinese people look at me and say 外国人, I might reply by saying I’m not a 外国人 but rather a 外星人 (wài​xīng​rén), which means space alien or extraterrestrial. This often gets a smile or laugh. Or I might point that to me they are the 外国人.

When I worked in Taiwan, I was officially an alien as I had an Alien Registration Card, which I found quite amusing.

外国人 is a formal and polite to refer to a non-Chinese national, and seems to be used particularly to refer to people who don’t look Chinese or Asian. Other ways to do so include:

• 老外 (lǎowài / lou5 ngoi6) – “old foreign” – this is an informal, slang term for foreigners, particularly foreigners of non-East Asian ethnicities, and is used throughout China in Mandarin and Cantonese. It is seen as offensive or rude by some [source]. It can also mean a layman or amateur, and in Cantonese it can refer to a father-in-law, specifically a wife’s father [source].
• 鬼佬 (gwai2 lou2) – “ghost man”, “devil person” – used in Cantonese and Eastern Min to refer to a foreigner, particularly a white Westerner. It is considered derogatory [source].
• 洋人 (yángrén) – “ocean / foreign person” – refers to a foreigner, especially a westerner or Caucasian. Used in some varieties of Mandarin, Gan, Hakka, Jin, Wu and Xiang [source]
• 外宾 [外賓] (wàibīn) – “foreign guest” [source].
• 国际友人 [國際友人] (guójì yǒurén) – “international friend”.
• 外国朋友 [外國朋友] (wàiguó péng​you) – “foreign friend”.

In China, people who were not born in the area they live are known as 外地人 (wài​dì​rén – stranger, outsider, non-local, out-of-towner) by local people. I met quite a few such people in Zhaoqing [source].

In the few days I’ve been in Hong Kong, I’ve seen more 外國人 than I did in 6 weeks in Zhaoqing. There, it’s rare to spot a 外国人 in the wild. Here, they’re more common. Today, for example, I heard 外國人 speaking English, French, German, Dutch, Russian and other languages I didn’t recognise. There were quite a few at Victoria Peak, which I visited today.

A view from Victoria Peak (太平山), Hong Kong

In Japanese, 外国人 (gaikokujin) is used to refer to a foreigner, an alien, a foreign national or a person who is not Japanese [source].

The informal version, 外人 (gaijin), is used specifically for foreigners of European ancestry, and used to mean any outsider, or an estranged or unfamiliar person. After Japan opened up to the outside world in the 1850s, 外人 started to be used to refer to foreigners, especially foreigners in Japan. It is considered negative and pejorative by some these days [source]. It can also refer to ethnically Japanese people who have grown up outside Japan and are not Japanese citizens [source].