Back in my childhood the Memorial was always conducted by this old bro. Of the remnant. He would read the scripture about Jesus breaking bread then break off a piece ,eat it slowly (seemed hard to get down before the wine came) and give the plates to the servers to bring round. We had two or three partakers then and there was a crack sound as they broke it.
More recently it has always been broken pieces on the plate. That is how it was the year I Conducted it.
the best part of taking a Memorial is that you get to keep the emblems.. We had a couple of friends round after and indulged in red wine, matzoh's and cheese!