Knock, don’t clap
This is just one of those little quirky things that took me by surprise.
At my first job in Germany, we had a big meeting, quite formal, the whole team, some presentations etc. At the end of the meeting, our boss said something like, “thanks very much, you’re all dismissed”. I made to leave but everyone around me started rapping on the conference room table with their knuckles. A different kind of applause, reserved for meetings and presentations in University and the workplace.
Not a big deal, just different.