The former couple were amiable and cheerful as they caught up in Los Angeles on Tuesday following the long Labor Day weekend.
The Justice League star rocked a pair of khakis and a navy blue blazer as he chatted with his ex, who kept her look casual yet chic in a black, long-sleeved top and jeans.
As for Affleck and Garner, who officially filed for divorce in April after a two-year separation, the two have always been outspoken about how important they feel it is to put up a harmonious and united front for the stability and well-being of their children -- 11-year-old Violet, 8-year-old Seraphina and 5-year-old Samuel.
Just last month, Affleck celebrated his 45th birthday with his estranged wife and their cute kids. Check out the video below to hear more.