It's funny when & where someone shows interest.
This morning I took my 1st ex (long story) to the hospital to have a cardiac cath. Everything is fine and that's not the point of this story.
Sitting in the waiting room, I struck up a conversation with a young man about computers, fiber optics (my job) and lots of stuff. When I pulled out my VK and took a puff, he almost jumped out of his seat. "Is that one of those new cigarette things?"
He was interested because his father is a heavy smoker. I gave him a card and he (a non-smoker) asked me to blow "smoke" at him so he could see how it smelled.
No one else even seemed to notice.