He told reporters: "Of course body language is important. We talk about this issue with the individual players and team, about the impact on the crowd, but also opponents because football is such a psychological game. You have to take everything you can and use it to your advantage. When your body language and expression can be positive, then you use it for the good of your own team.
"What you see is the character of a player expressed in their body language and that is not a thing that you can change in a short time. I think Bruno [Fernandes] is a good example of this. I have seen he wants to win and so he shows his emotion and that is an absolute strength from him to push his own team. He shows how much he wants to win so that others around him pick it up and go and fight with it."