The former couple, who were also both wearing their wedding rings, sat down on a curb outside and continued to talk and cuddle, reported E!Online.
"They appeared relaxed throughout and after their public display they left together in a Range Rover. They definitely looked as if they had reconciled," a source said.
Earlier, Anderson, 47, was seen partying with former beau Chuck Zito post filing the legal documents for divorce from Salomon.
Anderson filed for divorce on July 3 after less than six months of marriage, the pair having swapped vows on January 9, a little less than six years after Anderson had their first brief marriage annulled.