"He is always very positive and honest as well," the Frenchman told the club's official website.
"To be honest it was the same with the previous manager. That is the mentality of the club, it has always been very positive.
"It is great. Even if we get results, we are still adapting to the new style of the manager, the new philosophy of playing."
Everton's next fixture is a trip to Crystal Palace in the Premier League on Saturday.