Jessica Biel and Justin Timberlake in Toronto
Are they working on their relationship or just working off a big brunch?
was spotted biking around Toronto on Sunday with former girlfriend Jessica Biel
– shortly after grabbing breakfast with her at the Swan
"They were in good spirits," says an eyewitness who was at the cozy, art deco diner on Queen Street West at the same time. "They seemed happy. They had brunch together. They were talking. They enjoyed their food. They had a nice time."
It's been more than five months since the couple of four years broke up
, and a source close to Timberlake tells PEOPLE, it's no shock they are hanging out.
"They always remained friendly after the split and spent time together," the source says.
Biel is currently shooting the Total Recall
remake with Colin Farrell
and Kate Beckinsale
in the Canadian city.
With reporting by KC BAKER and JENNIFER GARCIA