I've posted this elsewhere, but it's true. My favorite club for live music and dancing is owned by a cardiologist. Yep: a cardiologist. He and his wife are terrific and friendly. He usually comes in once a night for a glass of wine and to check up on things. He's got a great (younger) staff. AND, he used to smoke. Quit 15 years ago. It's a no-smoking club since they bought the place three years ago and ripped everything out (to get rid of the former smoking smell) and started over. A few grumbles from the smoking regulars at the time, but nobody minds, really. Smokers have to go outside.
The night my kit arrived, I went to the club and he happened to be at the bar. I joined him at the next stool, took out my e-cig (V4L), showed it to him, explained it all -- he was fascinated. I took a puff and intentionally made a huge cloud of vape. Like everybody else who sees this for the first time, his eyes got wide and excited and he said, "WOW!"
Then I took another puff, this time intentionally inhaling all the vape (stealth vaping, in other words). He loved it! I suggested he consider telling his cardio patients about e-cigs, if they're having a hard time quitting analogs.
I've been vaping at the club ever since. The bartenders (who know I'm a heavy smoker and used to my stepping outside four or five times a night for a "smoke") are impressed enough they've also ordered kits. So have a couple of servers.
I stealth vape (cup my hand around the LED tip and inhale all the vape) wherever I feel like it -- department stores, grocery stores, restaurants, etc. Never had a problem.
Even in front of the police regulars at my favorite breakfast place! They're smokers too, and want to know all about e-cigs.
So, happy vaping!