Simon Stone, BBC Sport
On what feels like nights when City are in second or third gear and are still far too good for the opposition, it sometimes pays to keep an eye on Pep Guardiola.
The former Barcelona coach likes his elaborate reactions. He can't keep his feelings hidden.
So, when Matheus Nunes - who has struggled to bed in at City since his £53m move from Wolves in the summer - broke downfield in the early stages, even though the Portuguese's final pass didn't find Erling Haaland as intended, Guardiola bounded to the edge of his technical area and applauded him, hands above his head.
When he realised Nunes had not seen him, Guardiola kept shouting until he attracted the player's attention, where he made it clear he was happy with what he had done.
Similarly, towards the end of the first-half, when Erling Haaland couldn't get his feet in the right place to convert Kyle Walker's low cross, Guardiola hung his head as though he couldn't believe his misfortune.
In those two moments, he was trying to give confidence to a struggling player and demand more from one who is doing well.
Don't let anyone say Guardiola is not a brilliant manager.