Phil Mickelson is feeling the love from polite, funny Australians.

"My thumbs are sore," Mickelson said after being revered throughout another LIV Golf round in Adelaide.

The 52-year-old's popularity at LIV's inaugural Australian tournament is second only to home favourite Cam Smith.

Between shots, if Mickelson isn't giving the thumbs up, he's pumping fists with the sell-out crowd.

"It's just my way of acknowledging and showing appreciation for the people when they have been so supportive in their comments," he said.

"It's just a way of trying to connect and let them know I appreciate some of the things they're saying.

"What I am appreciative of is how kind everybody has been and how the comments have been fun or funny and positive."

For six-time major winner Mickelson, it's a mark of mutual respect.

"The thing that I enjoy most are some of the little things about being here in Australia," he said.

"For instance, when I go sign autographs ... there wasn't any pushing, there wasn't any shoving.

"People were patient. They waited. They were appreciative."

Mickelson entered the Adelaide event after finishing tied runner-up at the coveted US Masters.

At Augusta, phones are banned, the crowd studious.

In Adelaide, selfies abound and spectators are joyfully rowdy.

"This is really an example of what is possible and a new opportunity to present golf in a different way and have a different energy and a different feel," Mickelson said.

"I'm not saying it should happen every week.

"But what LIV Golf has provided is really a great alternative for the traditional ways of golf, and the people here in Australia have embraced it.

"You see a whole different energy, a whole different excitement and fun, and I'm happy to be a part of it."