It s all right to ask children or teenagers their age But it s not normally polite in English speaking societies to ask an adult their age - and never a woman!
1、How old are you? （你多大了？）
It's all right to ask children or teenagers their age. But it's not normally polite in English speaking societies to ask an adult their age - and never a woman! One exception is perhaps when it's a very old person, in their 80s or 90s, in which case they may be quite proud of how old they are.
2、What is your salary? （你工资多少？）
It's all right to ask someone what their job or position is, but it's not polite to ask them their salary. This is considered a private matter in English speaking societies.
3、What rent do you pay? （你付多少房租？）
Similarly, it's all right to ask someone where they live but it's not polite to ask them their rent. This is also considered a private matter.
4、How big is your flat? （你房子多大？）
Like rent, this is also a private matter - the size of someone's flat may well indicate how well off they are and that is something you should not ask about.
5、Are you Christian? （你是基督徒么？）
Many people feel religious beliefs are very personal and they may not feel comfortable to tell someone they hardly know.
6、Are you married? （你结婚了么？）
It's better to see if it becomes obvious in the conversation - some people may be embarrassed to answer 'No' if they are not married, or if they are divorced. It's better to ask 'Do you have a family?' (for an adult this usually means spouse and children, not brothers, sisters and parents). Then if the person is not married, it is easier for them to say so.
7、What's wrong with your hair? （你头发咋了？）
Remember, people are sensitive about their personal appearance. So even if something appears to you to be wrong, it's not polite to mention it unless you know the person very well. You never know, it is the hairstyle that the other person likes most!
8、How much did you pay for the dress?（你裙子多少钱买的？）
It's better not to ask how much someone has paid for clothes, furniture, etc., unless the other person offers the information. Some people wouldn't mind telling you, but others may feel it reflects on their financial status.
9、You look red. （你看上去很红。）
It is not polite to comment so bluntly on someone's appearance. But if you know the person well, you may say 'Have you been out in the sun?' or 'You have caught the sun a bit'. Many Westerners still like to look sun-tanned, i.e. brown, rather than sunburnt, i.e. red. So the following comment would be considered a compliment: 'You have got a good tan!'
10、Nice to see you again. You are fatter. （再次见到你真好，你看上去胖了很多啊。）
In Chinese 发福 is a compliment, associated with health and prosperity but Westerners tend to admire slimness. So you'd better to say 'Nice to see you again. You're looking well!'