For the best part of 25 minutes, Jurgen Klopp's demand was falling on the deaf ears of the Liverpool fans at Anfield.
"We need the best 12.30pm atmosphere ever!" Klopp said on Friday in what was something of an impassioned, pre-match plea to rouse a response across the stands here on Saturday lunchtime.
"If you cannot shout or sing, then stay at home and give your ticket to someone else, please."