Mind your Ps and Qs is an English expression meaning "mind your manners", "mind your language", "be on your best behaviour" or similar.
Read more about Mind Your Ps And Qs: Origin Theories, Examples
Famous quotes containing the word mind:
“There was never a century nor a country that was short of experts who knew the Deity’s mind and were willing to reveal it.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)