Being German and having lived for close to a decade in the US now, I feel like in German it's also more common to do these interjections. One more jarring diff

Being German and having lived for close to a decade in the US now, I feel like in German it's also more common to do these interjections. One more jarring difference though is when giving numbers over the phone (e.g. your account number). In German, it's common to say digits in groups of, say, two to four, and then the listening party repeats those digits, to make sure there was no mistake so far. In the US, the other person on the phone just... sits there. Not saying anything, not even an acknowledging interjection, until you gave them the whole number. And of course sometimes it arrived wrong and you have to dissect it...