Yeah, train stations, airports, pubs, cafes, buses, all with no problem.
In my view vaping does not pose a hazard or a discomfort to those around me, so I feel no need to refrain from doing so around them. I feel it is more comparable to taking round a fizzy drink than it is to smoking, so I would not use it in situations where that was not appropriate (e.g in a shop, in a meeting, and more besides). I would also avoid doing it openly in a hospital context and I'd ask before doing it in the workplace.
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