Age, to most British and American people, is one of the things considered not 小题1: to ask a stranger or a person that one does not Know well. 小题2: age, other things such as one’s income（收入）, marriage, and politics are 小题3: not fit to ask or talk about. There are still other 小题4: for you to understand the westerners and to 小题5: on well with them. If you want to 小题6: one’s bedroom, you have to ask for permission at first, and you must not open the desk or the closet in that 小题7: . On the top of the desk, there may 小题8: letters, business papers or other things. You must not 小题9: up one of these and read it. It is the 小题10: as in an office. If it is somebody else’s office, always ask, “May I come in?” and wait for the answer before entering the office.