I prefer for passengers to use the call bell rather than pop thier head into the galley. All too often the aisle is blocked between people lining up for the loo, people stretching their legs and parents who let thier kids play in the aisle- this makes it hard (and a little dangerous) for crew to move about he cabin doing thier job.
Although I do get a little frustrated by that small number of passengers who use the call bell to get seconds even though you haven't finished the service and given some passengers their firsts yet.
