And on Saturday the fine tuning for his debut Premier League campaign will begin.
It was said Moyes would not understand the true scale of the club he has been asked to take charge of until he saw for himself how popular they are in this part of the world.
Moyes has not been disappointed so far.
Massive crowds greeted their arrival in Bangkok on Thursday, the numbers were almost as large when the Scot went to sign a book at the local hospital in honour of the King while some keep a vigil outside the team hotel waiting for a glimpse of their heroes.
Thousands trekked out to the Rajamangala Stadium to watch the Red Devils train this evening, with a sell-out 48,000 crowd guaranteed for Saturday night's encounter with the Singha All Stars.
"When we arrived at the airport there were lots of screaming young ladies," said Moyes.
"I don't think it was for me but it was like some famous pop group arriving. It was incredible.
"We were taken on to pay respects to the king, who is in hospital just now. It was pandemonium when we got there.
"I have not been surprised but the scale of things has been fantastic."
That Singha have been prepared to shell out £2.5million to have United mark the 80th anniversary of their existence underlines what an attraction they are, even if there has to be an element of disappointment at the absence of injured Wayne Rooney and top scorer Robin van Persie, who won't link up with his team-mates until they arrive in Sydney on Sunday.
For United the game represents the official beginning of a new chapter in their history.
For Moyes the beginning of what he hopes will be an extended stay, even if it doesn't come close to the 26 years of his predecessor.
"I am really excited," he said.
"But I am more excited about the players I am working with. They would lift any coach but they have certainly lifted me.
"I see the ability but the biggest thing is their professionalism, which is second to none.
"I am really pleased to see how committed they are. Every training game they play they want to win.
"The players at Manchester United have that in-built attitude. Long may that continue."
Rio Ferdinand spoke highly of Moyes' work so far, confirming the new regime, which also includes his former team-mate Phil Neville, has been well received in the United dressing room.
"It is too early to compare but the intensity of training has gone up," he said.
"The players want to impress the new coaching staff because we want to be in the starting XI come the first game of the season.
"Training has been very hard but very fair. The lads are enjoying it. There is an edge to all the new things we are doing."
With not just Rooney and Van Persie missing but also Shinji Kagawa and Javier Hernandez, who played in the recent Confederations Cup for Japan and Mexico respectively, the only orthodox striker at Moyes' disposal is Danny Welbeck.
It should be the start of a long season for the England man, which it is hoped will end at the World Cup final.
United fans will hope he increases his goals output significantly though, having found the net just twice in all competitions last term.
"I have only seen Danny for a short time but I have been impressed," said Moyes.
"He looks a very good player. A lot of things he has done have been excellent and if we can add some goals to his tally last year it will make a big difference.
"But what I have seen so far he is an exciting player and someone I am looking forward to working with."