Kardashian, 36, and Disick, 32, and two of their three children – Mason, 5, and Penelope, 3 – visited the Beverly Hills Hotel together Thursday, a source tells PEOPLE.
"Kourtney and Scott acted cordial. They were mostly focused on the kids. Scott looked very happy to see the kids," the onlooker says.
Disick, who spent some father-son time with his eldest child Wednesday, has agreed to have a chaperone with him when he spends quality alone time with his children, a source says.
After the hotel visit, the reality star brought Penelope to Disick's Beverly Hills home.
"Scott and Kourtney chatted and seemed okay," a source tells PEOPLE. "Kourtney seems to be making an effort so Scott can spend a lot of time with the kids."
Disick seems to be on the same page.
"He's coming back down to earth and trying to figure out his next step," a source close to Disick tells PEOPLE. "He wants to do the responsible thing. Now that things have settled down, he's acting like an adult again. He's got a long way to go, but he's taking some steps that are encouraging."
Reporting by STEVE HELLING