People like when things go synchronized. See a ballet, military parade or a streetdance and it’s great when everything goes at the same moment. Also setting (and clearing) the plates on the table has a high wow!-factor.
Somebody searched for synchronized service plate waiter and ended on this site, finding… nothing. Until now, because I have translated a little instruction video I’ve made some time ago. Here we go!
Warning! Don’t do this at home! Soon you’ll look at the other end of the table waiting for a sign to put your plate down, even at home The ultimate sign of being a Crazy Waiter!