Anthony Weiner was still playing coy yesterday about entering the mayoral race, but if he gets in, he said, he intends to be a real contender.

“If I decide to run, it’s because I think I can win,” he told reporters outside his Park Avenue South apartment.

Although he has hired a campaign manager and allies say he’s a definite go, Weiner claimed he would “make a decision soon.”

Trailed by the press aboard a crowded uptown No. 6 train, he apologized to fellow passengers for adding to the crush.