The Brazilian has impressed since moving to Liverpool from Inter Milan in January, claiming one goal and two assists in three starts.
Though satisfied with how things have gone so far, Coutinho is undergoing extra work in order to come to terms with the physical nature of the English game.
He told Liverpoolfc.com: "It is very different here. In Brazil the game is very open, the defenders are not as tight with the attacker. I think this is the hardest thing here.
"Also, the game is very quick - but I feel I can improve these things during training and improve my intensity.
"I have been doing some body building, too, so I can get more used to the physicality."
Though he is just 20 years old, the Barclays Premier League is the fourth top-flight division Coutinho has played in having featured in Serie A, La Liga and the Brazilian league.
He's well placed, therefore, to discuss the different styles of play in each country.
"English football is very quick, it has great intensity, and I think this is the big difference [to other leagues]," he continued.
"In Brazil, football is slower, the tactics are a bit more open and the pitch even seems to be bigger - even though it is obviously the same size - due to the game being so open.
"In Italy, it is a little bit different than it is in Brazil, but here in England it is very quick. I played in Italy and in Spain but the intensity of the game here is very strong. I just have to improve to be able to play at the highest level here.
"I will always give my best and then try to score and create good moves to help the team win."
Coutinho already appears to have struck up an understanding with South American compatriot Luis Suarez - a man whose talents he believes are not of this world.
"Suarez is phenomenal - he is otherworldly," said the No.10. "The goals he scores, the way he gives himself to the team... It is very important and I am very happy to be able to play next to him.
"I think it's the way he gives himself to the team - he fights all the time and chases all the time. He doesn't let one ball go - even if it's the hardest one.
The new boy on Lucas and settling in
"He fights all the time to win and I admire that in a player. I think it is one of his strong points.
"I'm not only happy to play next to him, but also other players like Steven [Gerrard], who is phenomenal, too. These are guys from another world!"
Despite feeling as though he still has much more to offer, Coutinho could hardly have wished for a better start to Anfield life.
He concluded: "I'm very happy here. I am at a great club, I am wearing a shirt that has a great history and what I have noticed in the last few weeks here is that the whole group is very united, strong and fights for their aims. I hope I can learn more and more with my teammates here."