The 32-year-old made a scheduled appearance at at party at the LEX nightclub in Reno, Nevada on Friday night.
He started off the evening by dining with four friends at the Charlie Palmer Steak steakhouse inside the hotel. Dressed in a black and white plaid shirt, opened in the front to his lower chest, he and his pals arrived at the club around midnight and spent their time inside one of the elevated luxury VIP booths, surrounded by more than 1,000 party-goers, E! News has learned. He took photos with several fans.
Before the party, Scott shared on his Instagram page a photo of himself standing in front of a private jet.
"Get ready the lord is coming to Reno," he wrote.
Meanwhile, Kourtney, 36, spent the evening having dinner with mother Kris Jenner, 59, and her boyfriend Corey Gamble.
Kourtney has been spending a lot of her time away from Scott with their three kids, Mason Disick, 5, Penelope Disick, 3, 8-month-old son Reign Disick and the rest of her family. She recently vacationed with her sisters Kim Kardashian, 34, Khloe Kardashian, 31, Kendall Jenner, 19, and Kylie Jenner, 18, in St. Barts.
Since the split, Scott has made several scheduled club appearances, including one in Canada, where he partied with two "Cowbabes."
He also recently headed down to Mexico with Girls Gone Wild founder Joe Francis, a Kardashian family friend, and other pals for some "boy time." Francis owns a luxury beach resort where Scott and Kourtney vacationed together earlier this year.
It is unclear if Scott, who has battled substance abuse in the past, drank alcohol during his club appearance in Reno.
Scott has also spent time with his and Kourtney's children since the breakup. A source close to him told E! News earlier this month that he "trying to get his life together and that includes getting his family back."
—Reporting by Mike Vulpo