The Little Prince used to have 'No Smoking' tables - but they were usually empty.
On a busy night you would see people walk in, spot the sign on the table and hesitate. The sign was then swiftly removed and the people would then sit down
Smoking is part of the Greek psych and I think it will be a long time before they try and enforce no smoking rules again.
Being a smoker (quickly dives under the table), I love Greece as for once I am not huddled outside trying to grab a crafty smoke - although since the ban in this country we rarely go out now and prefer to entertain at home.
I, like Jimbo try to think of others, but sometimes when deep in conversation you may not be aware that your cigarette is annoying someone else. As Jimbo says - all it takes is a polite word!