The former Arsenal midfielder made his Liga debut on Sunday, and highlighted the importance of his coach's words ahead of the game
"The coach spoke with me ahead of the game and explained what he expected of me," Song was quoted as saying by Sport.
"That really helped me calm down a bit and gave me a lot of confidence. My teammates also talked to me a lot and that was very helpful."
The Cameroon international joined the Blaugrana from Arsenal this summer, and was part of the starting XI for the first time in the 1-0 win over Valencia on Sunday.
"I know that it's important at Barcelona to pass the ball directly. But strangely enough, sometimes it's even easier to drive the ball forward and keep possession."
Barcelona currently sits atop of La Liga with nine points from three games.