The 24-year-old, who joined the Gunners from Southampton all the way back in 2011, left north London at the start of the season in search of a new challenge.
Liverpool parted with £35million to land Oxlade-Chamberlain, who has recently found his feet in Merseyside.
Discussing Liverpool’s training sessions, and revealing how they differ to ones at Arsenal, the winger told the club’s official website: “The biggest thing I’ve had to learn is how this manager likes to stop situations at source and how he likes to attack is slightly different to my manager before.
“I was in certain habits and certain things became second nature to me and in football it is all about instinct. You train and train a certain thing so when you are in that situation you don’t think about it.
“It just might be a simple trigger when something happens and the defence passes to that player and the ball is slightly behind him.
“That is your cue to go and press. At your previous club you might not even look into that. I have about 100 different things but it is all those adding up.
“When a team is in sync to do what a manager wants and you have one player who has come in and is doing it slightly different it breaks the whole chain and it doesn’t work for everyone.
“We press high and if one person is not doing it right – even if it is small – it makes everyone’s work a waste of time. Just little things like that I had to learn. It can take some time.”