At first glance, you’d never have guessed that Tuesday was Lucas Giolito’s first day with his new club.

Nerves didn’t appear to be a concern for Giolito on the day of his first big league start with the White Sox. His head wasn’t buried in a phone or an iPad. He wasn’t tucked away from everyone, preparing for the night. Instead, Giolito was entertained by his fellow pitching teammates who were playing a game of cards. Laughs and smiles aplenty.

Surrounding oneself with veteran pitchers such as Mike Pelfrey, James Shields, and even the recently successful Juan Minaya on your first day in the clubhouse seems to be a smart way to break yourself in.

“I’m excited to watch him pitch tonight,” pitcher Miguel Gonzalez said of Giolito. Gonzalez’s favorite thing the Giolito brings to the White Sox? Not his power curve or pitch mix, but his personality. “Just the way he goes about his business, he’s a smart kid, he likes to learn, he asks questions just like any other guy that’s been getting called up,” Gonzalez said. “We’re excited to have him with us.”

Giolito joined the White Sox organization last December during the annual Winter Meetings in the trade that sent Adam Eaton to the Nationals for Giolito, Reynaldo Lopez, and Dane Dunning.

With the sudden success and emergence of Lopez, the hype surrounding Giolito was cast aside for a bit after what some would consider a rough start in Triple-A Charlotte. Giolito pitched to a 4.48 ERA in 128 innings with the Knights—the most innings Giolito has pitched in a season so far in his career.

After questions surrounding mechanical changes Giolito made when with the Nationals organization, the White Sox have been patient getting Giolito back to being comfortable with his execution on the mound, as well as working to strengthen his three-pitch repertoire.

“His mechanics are much more sound than they were in spring training, maybe than where they were last year with the Nationals,” Knights pitching coach Steve McCatty, formerly the Nationals pitching coach, told James Fegan of The Athletic. “He’s repeating pitches a lot better. He still has some things he’s working on. The command of the curveball is getting better but also he has a really, really good changeup.”

“His past what, three starts have been really good, I don’t even need to see the video to see what he was doing well,” catcher Kevan Smith said. “Every time he’s commanding the zone, when he’s down in the zone with his heater, dropping his curveball in for strikes first pitch and using it as a put away pitch. He’s an impressive guy out there when he’s on and I’m sure he was doing all of that with his changeup as well, so when he has all three pitches working for him he’s pretty untouchable.”

Giolito’s pitch-to-watch will be that much improved curveball that Smith is so high on—a pitch that Giolito is now consistently throwing for strikes and feels confidence in.

“It’s just a big feel thing for these guys, you kind of see if they have [the curve] or not in the bullpen before the game and obviously [Giolito has] been having it,” Smith continued. “It’s a day-to-day thing, just keep working with him and see what he’s changed and just kind of move him around and just keep working towards success each time.”

Giolito found himself surrounded by familiar faces in the Sox clubhouse on Tuesday. His locker is right next to former Charlotte teammates, and recent alumni, Nicky Delmonico and Yoan Moncada.

“He’s got electric stuff, you know he goes out and competes everyday and he throws the ball well,” Delmonico said. “He’s got great composure on the mound and no matter what I think he’s going to be very successful up here.”

Giolito may no longer stand alone as the headliner in the Eaton trade that helped the White Sox begin a strong foundation for their rebuilding efforts. That space may now be shared with Lopez. Regardless, Giolito has made improvements from a year ago when he pitched just 21 innings of baseball with a 6.75 ERA in Washington.

“Obviously his stuff was lights out then, his stuff is lights out now,” Smith said. “I think this year is just boosted his confidence. He can see that he can perform at this level I think confidence is a big factor in baseball. If you believe that you can success at this level then you will.”