Keane joined Everton from Burnley earlier this summer for a fee that could rise to £30m and the former Manchester United trainee believes that the combination of the rugged defensive style he aquired at Turf Moor and Koeman's more technical approach will help him develop as a player.
Speaking ahead of England's World Cup qualifiers against Malta and Slovakia the 24-year-old said: "At Burnley, it was all about defending, which I loved, and I improved a lot when I was there, but it's just a different style of play.
"You've still got to do that at Everton, it's the basics of being a defender, but you also have to play out from the back a bit more.
"Ronald is trying to bring that out of my game and develop me in that sense. He was more of a ball player and scored a lot of goals.
"He won't talk to me every day but when he does, he's got a lot of authority and you take it, you listen.
"Every now and again, he'll pull me into his office, show me a few clips of what he likes his centre-halves to do.
"That's all I can ask for, it's one of the reasons I went there, because he played at the top level. He's got a lot of experience and hopefully he can keep passing that on."
Kean will be hoping to get the chance to add to his two England caps when the 'three lions' face Malta on Friday.