If I was sitting at the bar with friends I probably wouldn't have bothered to, either. I was in the restaurant area with my family surrounded by other families.
While we may feel like it's no different than chewing gum, we *are* putting a visible vapor out into the air and I don't believe that pretending we have more rights than everyone else sitting around is going to help the cause in the long run. Yes, it is absolutely "better" than cigarette smoke, by far, but it's still *there*.
What makes you think that putting vapor into the air (as opposed to smoke) is a right that everyone doesn't have? Until there's a law that says you don't have that right, it's everybody's right, not just ours.
If I was sipping a hot cup of coffee, I'd be putting vapor into the air. Is that not a right everyone else has? Should I feel like I have a special right that no one else has? After all, it's just *there*, just like vapor from my PV.
I don't ask for advance permission in a bar or restaurant. I don't vape something that looks like a cigarette, so if some ......ed person thinks I'm smoking, that is their problem. I take out my big old PV as soon as I'm seated. I set it on the table in full view of everyone. I vape on it before the waitress arrives with a menu. I vape on it, and blow the vapor toward my lap as soon as the waitperson arrives. If nothing contrary is said, I'm going to assume it's o.k. I've never been asked to stop, so far. If I am asked not to vape, I'll either attempt to explain what I'm doing or I will stop and get up and leave before I order anything. There is no way I'm going to put myself in a position of ordering and eating first, only to find out later that I've just patronized a vaper-hostile establishment. If I'm denied "permission" to vape, I'll let the management know exactly why I'm leaving, why I won't be back and why nobody over whom I have any influence will be there either. And I'll leave. And no tipping.