We went to a concert for a Jewish organisation so it's not incredible to assume that everyone there was Jewish. My partner became all over-excited, like it was exotic and not just a group of people gathered together in a hall to listen to some live classical music.
It was explained that the only other time my partner has been in a minority of one at a Jewish function is at synagogue. Frankly, you'd think after nearly 10 years we would have got over that kind of exoticisation stuff... but I guess I very rarely do community kinds of things so maybe it is still unfamiliar enough to have that edge?