Polish has a lot of intonation—which is also kind of unique. I can instantly recognize people speaking Polish, even in larger groups of people talking all kind

Polish has a lot of intonation—which is also kind of unique. I can instantly recognize people speaking Polish, even in larger groups of people talking all kind of languages, just by the very typical sentence melody that sticks out. But it's indeed quite different to other languages, even the other Slavic ones. Germanic intonation and sentence melody (for example like in German or English) is completely distinct from the Polish one. And this melody seems to be something sticky as you can always recognize Polish people just by their intonation even when they speak otherwise perfect German or English. That's not the case for for example Russian, or Czech, or Slovak people.