I no longer smoke as a habit, but when I have to travel solo (like for work) I sometimes will buy a pack just so I have an excuse to strike up a conversation with other humans without being called a creep or weirdo. "Hey, you got a light? What brand you smoking? How are you liking the conference so far?"

It still is. I gave up for 15 years, and just the last two years i have been smoking. In these last two years, I've met a lot of people in my company out in the smoker's den, and quite a few of them are really interesting people.