The Brazil international sealed a move to Anfield earlier this month for a fee that could rise to £28 million, and has now revealed his reasons for securing a move away from Hoffenheim.
Firmino says he is excited to play in the Premier League, and says he was keen to join the club upon learning of Brendan Rodgers’ interest.
"I decided for Liverpool because they wanted me for over a year,” he told Bild. “There was a certain sympathy from the beginning and I had a good feeling from the start.
"I come to the best league in the world. I can grow there. Physically, it will be a new challenge due to the big number of games to be played with the five competitions.
"I am looking forward [to seeing] the fans at Anfield. I am already having goosebumps if I think of them singing 'You'll never walk alone'.”
Firmino also insists that he will not be weighed down by his fee, and says that he is looking forward to linking up with Philippe Coutinho at Anfield.
"I don’t see my fee as burden. Rather as an appreciation and a compliment,” he added.
"It is an advantage that Coutinho is there. He is my compatriot and knows me and can make my familiarisation easier. And aside from that, we get on well."