+1 not the UK
+1 not having face book account.
But frankly who cares, wearing a burqa doesn’t make you any more evil than a pair of doc marten boots. There are places where they are wholly inappropriate, in the same way as spandex isn’t appropriate attire for a board meeting, but outside of those situations what business is it off anyone’s and even in those situations is not anyone’s choice but the wearer’s any how, though you could at least be forgiven for pointing out it’s not sensible for swimming in, if the wearer takes that advice great, if not it’s their decision.*
*There is of course the school of thought that says the burqa isn’t the woman’s decision, when in told that by someone who doesn’t dress like everyone else in their social group I’ll give it some credence.