The Stoke manager has urged the club's fans to show their support for the players, saying there is no reason why they should be negative about the club this season
Stoke currently lie 15th in the league table, only three points off the relegation zone, and are currently on a six-game winless streak, seeing them slip into the battle to avoid the drop.
Pulis says the crowd at the Britannia Stadium have been great over the last few years, and although the Welshman believes supporters have the right to do what they want, he feels their support is crucial in the relegation run-in.
The 55-year-old told reporters: "It is important everyone recognises they have to get behind the club and get behind the team now. This is when we need them the most.
"The supporters have a right to say what they want to say and do what they want to do - that has always been my philosophy.
"But I don't think there is any reason for people to be moaning and groaning.
"People can talk about the previous seven years at this club and say it has been one of the most successful periods it has had, but that counts for nothing.
"But the crowd have been good. There haven't been many occasions at the Britannia over the last six or seven years when they haven't got behind the lads.
And Pulis has urged the fans to be vocal in their support, adding: "I think they realise we have got three massive games at home and I am expecting the crowd to be absolutely fantastic in those three games.
"It is tough times and you have to accept when you don't win football matches you are going to be under pressure and the spotlight is going to be on you.
"But I try to keep my feet on the ground. You keep working at it and embrace the challenges ahead."