I should have called Coach.

That’s the only do-over star receiver Hakeem Nicks wanted Tuesday as he finally showed up after staying away from the Giants the past two weeks.

After telling Tom Coughlin he would attend organized team activity practices, Nicks was a no-show, irritating the coach and sparking speculation as to why Nicks was absent from the voluntary workouts. A mandatory three-day minicamp brought Nicks to the team facility, where he expressed remorse for not alerting Coughlin to what was going down.

“I feel where he was coming from,’’ said Nicks, calm as always, surrounded by a media throng at his locker. “I could have done a better job of reaching out, but we finally got to talk and we got things straightened out. Coach Coughlin’s my guy, so I think that relationship can’t go sour. I should have done a better job of reaching out to him, but I’m here now.”

Nicks does not foresee why he would not report July 26 for the start of training camp, and he expects to be “full-go’’ following offseason knee surgery.

That should assuage Giants fans worried the Nicks no-show was sign he was disgruntled about his contract, which is entering its last year.

Coughlin said his conversation with Nicks is “between he and I,’’ and after seeing Nicks on the field made it clear he is behind the other receivers in his preparation.

“He’s definitely not in tune with where we are,’’ Coughlin said. “We’ve had nine OTAs and we’ve thrown a lot at ’em. I mean, he’s just had one meeting. If he’s around, he’ll pick it up quick. He’ll get it fast.’’

Nicks’ arrival for the minicamp was expected. The OTAs were voluntary, so Nicks could not be fined for missing them. Nicks would have incurred fines totaling $66,150 were he to miss all three days of the mandatory camp.

Unlike Nicks, Victor Cruz cannot be fined for missing this camp because he does not have a contract. The Giants expected Cruz would not show.