My ex-husband is a Cajun who taught me a lot about language pick-up. Of course he was fluent in French, also had one year of Catholic high school Latin, so when we took a week's vacation in Italy, after a day he was speaking a passable pidgin Italian. And watching him, I realized I could do it too. Just from the semester of Dante in facing-page translation.
Yesterday I wrote here that I can't understand it spoken to me, but I can speak it very childishly. And of course the effort of doing that is much appreciated.