Previously, Stewart, a 6-foot, 175-pounder, visited UNC for the season-ending football game against Maryland.
Stewart hasn't officially established a list of favorite schools, but says UNC is among the schools that have offered and are sticking out.
"I like it a lot, actually," Stewart said. "The coaches show a true interest in me. Both times I've been down there, they've taken good care of me."
Duke, Maryland, and Virginia join UNC on that list.
"They are all great schools," Stewart said. "They're all in the building process of building a great team. They all have a high interest in me. They all have showed me that they really want me to come to their school and be a part of their program."
Besides UNC, Stewart has visited Duke, Maryland, NC State, Virginia, and Wake Forest. He's in the process of setting up trips to Northwestern and Virginia Tech.
"I want to visit these schools to get a feel for which schools fit me best," Stewart said.
Stewart is planning to graduate early, thus he's looking to make a verbal commitment within the next four or five months.
Between touring the campus and facilities on Saturday, Stewart spent a great deal of time with members of UNC's coaching staff. In fact, Stewart was pulled out of one of the tours and escorted to Larry Fedora's office.
"They told me Coach Fedora wanted to talk to me, so I talked to him for a good 20 minutes," Stewart said. "He told me that they really want me. And he was just like whenever I decide I want to commit to North Carolina, just give him a call. He said he was going to take care of me."
Stewart, who has played cornerback, safety, wide receiver and running back for Yorktown, also got a better sense of what position UNC will be recruiting him as.
"Coach Fedora asked me what I would like to play," Stewart said. "And I told him I would like to play on defense. He said that was fine, because they really need some corners.
"On defense, you kind of have a swag with you, you have to have tenacity, and just a fire. I just like how hyped a defense gets on third-and-one. When you make big plays on defense, you can change the course of the game."
Stewart had several conversations with Walt Bell, his primary recruiter, throughout the day including a lengthy chat following the day's activities.