They have to see it and believe it.
"I told Redmond that he is a good player; last season he destroyed us with his style, but this time he could not attack us because his team was always in a defensive position, they wasted a lot of time during the game", Guardiola explained at the press conference.
When quizzed whether he had advised his players to play down their social media activity, he smiled: "They are free to do what they want, but when they post something, then they might have comments, insulting them or whatever - but if they want do it, do it, no problem".
"Yes he was very passionate, intense and aggressive but he was only very complimentary and positive to me", Redmond said. "I think before he was more active and now he's more passive".
Spurs now face two huge home games in the Premier League against Stoke City and Brighton and Hove Albion respectively, before they face arguably their most important game of the season - a trip to the Etihad to take on Man City.
"From the beginning of the season through to now, the games have changed completely, but we need to find a way to deal with it", Kompany added.
"It's not my business", said Guardiola.
The England global still has two years to run on his present deal at the Etihad Stadium.
"All the credit goes to him", he said. All the managers want to help their players because if they play bad we'll be sacked.
Guardiola, 46, has earned a reputation for talking up opponents, regardless of how modest they appear on paper.
"We tried to help him, the individual performances, it's no secret". "I ran after Raz but I'm not quick enough but we were so happy".
"Losing the game the way we did in the last kick of the game after working so hard for 90-plus minutes, I was very disappointed".