What you take off of cigarettes. It's amusing to watch different types of smokers.
Serious old wrinkled-up smokers will suck on a cigarette so hard that it will actually collapse. Non-smoking girls who want to be cool will puff instead of taking a drag. Those who smoke only because they want something in their mouth will often not take a drag, but just let the thing hang in their mouths with the smoke drifting into their bodies.
But the saddest scene is when people do not actually ever take a drag. Have you ever sat near someone in a bar or restaurant who will light a cigarette and then lay it in the ashtray to burn as some sort of noxious incense? These people need to be eliminated.