But he also seems to breed a confidence amongst his teammates, and fans, that just wasn't there under either 'keeper, particularly Karius.
The 25-year-old made sure to acknowledge his new supporters by waving back and thanking them for their backing.
Liverpool took the lead after four minutes with a smart shot from James Milner before Georginio Wijnaldum put them two up shortly after.
Liverpool, though, did not have to wait long for their second goal of the evening as Milner turned provider with a superb inswinging cross from the left that Wijnaldum nodded home.
Summer signing Fabinho came off the bench to replace the former England worldwide.
The interplay between the front-three was also impressive.
It was a stroll for Liverpool from that point, but fans of the club still had plenty to be optimistic about.
Adam Lallana is upbeat about Liverpool's prospects in the upcoming season.
Forwards Mohamed Salah and Sadio Mane will be looking to get further pre-season minutes under their belt, alongside fellow first teamers Virgil van Dijk and Andy Robertson.
Xherdan Shaqiri, who came on for Firmino at half-time, was heavily involved as he latched onto Mane's pass and stood a cross up towards Salah, who found a pocket of space in the box and sent an unstoppable curler beyond Orestis Karnezis. Fabinho could become the controlling presence in midfield Liverpool haven't had for some time.
Liverpool released an official statement announcing Alisson's "provisional" number, and confirmed that the goalkeeper will be assigned an official number in due course.