What is a one-sentence summary of the following article?
" This is pronounced as "doh-BRAH-nohts." The "oh" sounds are soft, as in "ocean." The a is a soft "ah" sound, as in "apartment." This word is used similarly to the way you'd use "good night" in English—you can say it to someone as you depart at night, right before you go to bed, and so on. " say "jak się masz?" In many languages, it's customary to ask how someone is after saying "hello." Polish is no different. This phrase is pronounced as “yahk sheh mash.” Both of the "a" sounds are soft "ahs," as in "apartment. This is also informal, and is best used after "cześć" or "hej." It's not suitable after more formal greetings, such as "Dzień dobry" or "dobry wieczór." " When it's time to leave, use this phrase, which is pronounced "doh veed-ZEN-yah." The only item of note here is that the W here receives the customary V pronunciation. The rest of the word is fairly easy to sound out. It's pronounced almost how it would be if it were an English. If you want to really impress your Polish hosts, offer this up when someone asks you how you are doing after the initial greetings. The implication here is that, by asking about you, someone has shown an interest in your affairs. By saying "thank you," you are graciously acknowledging their interest and paying them a social courtesy in return.  "Dziękuję" is pronounced like "jen-KOO-yeh." "Proszę" (prosh-eh) means "please." It can also mean "you're welcome" if it follows "dziękuję." "Dobrze" (doh-b-jeh) means "good." "Bardzo dobrze" (bard-zoh doh-b-jeh) means "very good."

Summary:
To say "goodnight," say "dobranoc. To say "how are you? To say "goodbye," say "do widzenia. Say "thank you" when asked how you're doing.