Social Smokers Aren't Hooked on Nicotine, Just Smoking - Healthy Living - Health.com

There's a species of smoker among us that is common yet poorly understood. Their habitat consists of parties, barbecues, and the sidewalks outside bars and restaurants. They prefer to scrounge for their cigarettes, and if they do buy a pack, they're apt to nurse it for a week or more. You may hear them say, "I'm not a smoker," or "Only on weekends."

These are "social smokers"—and there are more of them than you might think.