1.   And with penetration reaching critical mass, extreme users are risking becoming social pariahs, just as smokers puffed their way out of public favor.

2.   He realized that anti-smoking laws had taken effect since his last visit, leaving the streets as one of the few public places where smokers can puff away freely.

3.   On a recent weekday afternoon, smokers puffed happily away, flicking their cigarette ashes into glasses.

4.   Smokers puff through their lunch hours, nonsmokers lunch through smoking breaks, and everyone, it seems, has an opinion about Ed Holloway.

5.   Social and serial smokers are puffing away at an underground network of restaurants that would rather risk a health inspection than alienate valued customers.

6.   Social and serial smokers are puffing away at an underground network of restaurants that would rather risk an inspection than alienate valued customers.

7.   The antismoking laws had taken effect since his last visit, leaving the streets as one of the few public places where smokers can puff freely.

8.   A new anti-smoking law was relaxed Wednesday to allow smokers to puff at cigarettes in the privacy of their cars.

9.   While even Italy, which has been lax on enforcement of smoking bans, has begun to crack down, the Vatican has been letting smokers puff away.