Smoking is like breathing however it is very bad for you. To smoke you take either one pipe or one cigarette. For a cigarette you light one end and breath through the other end.
when you smoke you can get/catch all sorts of stuff such as: Emphysema. Emphysema is a diseases that you get when you smoke. It can cause death and when you do die you don't die fast. So it is quite painful.
You can get lung cancer from smoking because when you smoke the fumes go into your lungs and then your lungs start to go grey and this can result in death.
Smoking can also: give you a bad breath and also it will make your car smell if you smoke while driving. So no one wants to buy your car if you want to sell it.