Christensen played in Geelong's NAB Challenge match against Richmond at Yea last weekend and was learning from a Brownlow Medallist.
The 18-year-old local was taken by the Cats with pick 40 (third round) in last year's draft and has worked hard to build up his body and learn the ropes in an AFL environment.
And despite having the best midfield in the game to learn from at training, Christensen said it was not the same as actually pulling on a Cats jumper and playing in a real match.
"It's completely different - it took me a good two-and-a-half or three quarters to get used to it all, but I loved the experience," he told geelongcats.com.au. "It was just so much quicker than anything I've done before, and it had bigger hits and bigger bodies around, but it was good.
"The first player I played on was Ben Cousins, and he took me up and down the ground about seven times and I was absolutely stuffed.
"I was playing on a wing so I also played on a couple of Richmond's good players like Trent Cotchin and (dual Tigers B&F winner Brett) Deledio as well, so it was good experience playing on them, boys who have been in the system for a while.
"You learn from the way they run, their patterns, their smarts - you just learn so much off them."
Assistant coach Nigel Lappin - one of the best midfielders of the modern era - said the coaches were happy with the way Christensen was going about his footy.
Lappin acknowledged two of Christensen's strengths were his understanding of the game and the pace at which he was learning to adapt.
"He was playing on the wing and on the half-forward line a little bit [last weekend], where you do have to get involved with some of the structural stuff, and he played his role really well," Lappin said.
"And then when it was his chance to win the footy, he was prepared to put his head over it and go and win it, and we thought some of his decision-making was really good when he had the ball in his hands.
"The philosophies and principles by which we play, he certainly played to those, and did his bit in terms of ball use and decision-making."
But Christensen said it wasn't only footy skills that he'd picked up from being in the environment at Skilled Stadium, although he was surrounded by stellar teachers of the football arts.
"Probably time management and organisational stuff and heaps of football knowledge," he said.
"Learning off (Joel) Selwood and (Gary) Ablett, when we're doing stoppage stuff they teach you so much, like how to get away from people, positioning stuff.
"But because we're not really set in positions anyone can play anywhere, so if you go forward Stevie Johnson will help you, if you go in the midfield Jimmy Bartel will help you."
