PITTSBURGH — The last game of Joey Porter Jr.’s contract year presented a chance to make a closing argument.His assignment: Shadow Houston Texans wideout Nico Collins, a 6-foot-4, 222-pound mismatch. During the Steelers’ 30-6 loss in the wild-card round, Porter was one of the few bright spots, limiting Collins to three catches for 21 yards before a concussion knocked him out of the game late in the third quarter.“You made some money last night,” Joey Porter Jr. remembers his dad, Joey Porter Sr., telling him after the game.The time has come to see if the Steelers agree. When the team opened mandatory minicamp Tuesday, Porter and fellow 2023 draft pick Nick Herbig were present and in uniform. They participated in a small handful of walk-through-paced installs. They sat out of the majority of practice, however, including individual periods and other segments open to the media for filming.That’s a long way of saying they were “holding in” — the new tactic in which players attend practices to avoid fines, but hold themselves out for segments to make their point and avoid injury during contract negotiations.“I want to be out there,” Porter said. “Everybody knows I want to be out there.”While Herbig skipped the voluntary OTAs over the past two weeks, Porter showed up. He is walking a delicate line. He clearly understands that it’s important for him to be in meetings as a new coaching staff installs the defense. But he also has to handle the business side of the game.“I really just want to show the new coaching staff that I’m here for the new process, the change,” Porter said. “That was really the main reason why I went to (Mike McCarthy’s) introduction, the main reason why I’m still here. Just to keep teaching these young guys, just to show my face and show that I’m in the building.”