Cho smiled and shrugged, "Don't worry about it." She was a bit curious as it wasn't often she heard this kind of accent, and as someone who had been in Ravenclaw, she was possessive of an insatiable curiosity whenever an opportunity presented itself to learn something new.
She quickly grabbed her ice cream and put it in her cart with the rest of her foodstuffs. Lots of healthy things, of course, but if you were to push the zucchini and tomatoes aside you would find some cookies and other such delicious snacks.
She tried to tamper down her curiosity, but alas, it did not work. "If you don't mind me asking... where are you from?" Note to self, she added afterwards, don't mention anything about Hogwarts when in a muggle grocery.