I just got back from a vacation. I vaped the whole time with no problems. On the jet, in restaurants, the metro and even in the Louvre. I did have concerns on the jet because I didnt want to upset the smokers that were stuck on the plane for eight hours.
There are a few things that make a big difference when vaping in public. First, dont ask. There is no need to. Done properly there is no issue. Then get smoking out of your thoughts. SMOKE has nothing to do with vaping. Unless someone proves that second hand vape is a health problem you are doing nothing wrong. In the three months that I have been vaping I have had one person try to jump on me about polluting the atmosphere by vaping. I told her to mind her own business and to put the cupcake that she was eating down because she was spreading Propylene Glycol and Vegetable Glycerin into the atmosphere every time she took a bite.
Next, be discreet. Dont make a spectacle out of yourself. Dont get a look on your face like you just p--ted in public. If your intent is to vape in public use a PV that doesnt look like a cigarette. I have a VP2 that I can turn the battery around and have no LED lights. It looks like what it is, a Personal Vaporizer. Ive even had people ask if my doctor prescribed it for me.
Next, if the situation calls for it hold the vapor in your lungs until it dissipates. When you exhale very little vapor escapes if any at all. Thats what I did on my flights. If folks dont see plumes of vapor they dont associate it with smoking.
I found that the people who would approach me were just very curious and I was very happy to give them an education and make recommendations. I am very grateful to be a vapor and Im also very, very proud that I helped some folks kick the cigarette habit.
As I see it our biggest problem is that the general public has no clue about vaping. Until they are educated we are going to have to play these little games. I plan to be proactive.