Sterling has been the real bright spot so far and Johnson said he had to be given the right support from his team-mates in order to be able to flourish.
"We've got a great bunch of lads and everyone makes everyone feel welcome," he told liverpoolfc.com.
"Raheem is 17-years-old but you make him feel like one of the lads because he is and he deserves to be here.
"It makes him feel more comfortable - and more comfortable when he's going into games, which is going to help him and the team.
"You have to encourage the young lads. When I first came through, I had people like Stuart Pearce and other big players helping me.
"Raheem is a fantastic player as it is, so if he keeps working hard and doing the right things, he's going to be a great player."