It is usually considered impolite to ask others for cigarettes without any communication. However, there is a very important premise for using this request method, that is, communication and interaction with cigarettes have been used. For example, when two people smoke each other, it is a polite way to ask each other for cigarettes. In this case, the other party's answer may be to give or not to give, but it is important to express the feeling that both parties enjoy it.
In some cases, it may not be appropriate to ask others for cigarettes. In public places, such as stations, airports, restaurants and other places, when strangers ask you if you have a cigarette, you are likely to feel uncomfortable or refuse. After all, the purpose of this place is to make people quiet and orderly, not to make friends. In addition, in some industries, such as medical personnel, educators and government agencies, smoking is explicitly prohibited. In this case, it is not appropriate to ask others for cigarettes, because it violates the relevant regulations.