In addition, they may rinse their mouths with a mouthwash or chew mints in order to be sure their breath is free of food odors. Some foreign students and scholars come from places where the human body's natural odors are considered quite acceptable, and where efforts to overcome those odors, at least on the part of men, are considered unnatural. The United States is making an aggressive effort to reduce smoking. You should be aware that smoking is usually restricted to defined areas, including on campus. Smoking is prohibited in most government buildings and theaters.
Restaurants have smoking and non-smoking areas.
If you want to smoke, you should always ask your host or hostess if it is permitted. Many Americans do not like smoking in their homes or automobiles. Even if you are visiting a restaurant that permits smoking, it is always best to ask your companions whether they mind if you smoke. Alcohol and Drugs Perceptions about life in the United States that one gleans from films and television may be different from reality. This is certainly true in the case of alcohol and drugs.