Johnson and his teammates returned to Melwood on Monday following the summer break to begin pre-season training.
And though he acknowledged the sessions have been tough, he is relishing being back amongst the squad as they prepare for 2011-12.
"It's always nice to come back and see everyone again when you've been off for a few weeks," he said. "We've got some hard weeks of training ahead of us now, but that's part and parcel of it and it's good to be back.
"The first few days have been difficult - they're probably the worst few days of the season! But it's been enjoyable too. The lads have been working hard, everybody is injury-free, touch wood, and it's looking good."
After a week of training at Melwood, Liverpool will depart for the Far East on Sunday as they embark on their two-game tour of Asia.
Johnson added: "It will be brilliant. It's part of pre-season, so we will go there and the important thing will be fitness work, but I'm sure we'll try and enjoy ourselves while we're over there as well."