Kirk's praise for manager
The striker's equaliser in the last npower League One match of the season at Leyton Orient earned Latics a 1-1 draw.
It was a great moment for 20-year-old Millar who has made 30 appearances for Latics - six starts and a further 24 from the bench.
But it is only since the appointment of Johnson as manager that Millar's has been brought in from the cold after featuring little in the latter part of Paul Dickov's reign as manager.
Millar (pictured) said: "I am buzzing to have scored my first goal for Latics.
"I have worked hard to get into the team and Lee Johnson has come in and given me a chance.
"He has been a big help and also put me up front where I prefer playing,
"I have played as a winger with Latics, but before I came here I was always a striker,
"Lee Johnson must have seen it in me that I can play up front."
Millar added that the goal, in the last game of the season, showed it is never too late to score.
"Jose didn't catch the ball and I shanked it as well, but they all count, don't they?," he said.
Millar was also delighted to see Danny Gosset given his full debut at Orient and also see first-year scholar Jack Truelove given a run out late in the game.
"It is good to see the youngsters being given a chance now, " he continued.
Millar is one of Latics' out-of-contract players, but he is keen to stay at Boundary Park.
He said: "Hopefully something can be worked out and I can stay.
"It has been great to have a run in the side late in the season and I feel good and happy.
"The more I play, the more confident I feel, and hopefully I can kick on."