Teach the foriegn kid the swear words…

Yesterday while at a local bookshop a non-specific Asian lady did something that caught my attention. She was clearly looking for a book of some kind, but she needed some help from the shop staff so she would walk up to them really fast and then say very loudly “May I help you?”, then she would get a little bit huffy when this phrase didn’t seem to do the job. As a last resort she instead said “Piano music!”. I was left wanting to know who had taught her to say these things. But then I left the store so I don’t know if she ever found what she was looking for.