I smoke alone. Very alone, in fact. I'm banned from smoking in the house or my car. I usually smoke in the backyard. After I've smoked, no one will come near me. I smoked once in the lounge of a local cigar store and was amazed by how little I had in common with the others. Had we stuck with cigar stuff, we would have had lots to talk about, but this was a group that knew each other and had long since covered that subject.
I usually pick a day a week to chain smoke cigars with an occasional pipeful thrown in. This is not ideal, but my wife married an ex-smoker and my kids never saw Daddy smoke before, so they are still upset a year after I went back to it.
The rest of the week I chew nicotine gum or use the patches when necessary. I've tried snus from Sweden, but it gives me the tobacco breathe I try to rid myself of for most of the week.