In between the nuptials and the reception, the duo and a group of friends visited Chop Shop in Wicker Park.
"There were about eight people total, all coming from the wedding. They grabbed a table and ordered sandwiches. Zac had a turkey sandwich. Sami had a veggie panini. Neither of them were seen drinking," eonline.com quoted a source as saying.
On their visit to the outlet, the duo was also seen getting cosy with each other.
"Overall, there was a lot of laughter. He (Efron) and Sami were next to each other the whole time. They looked very happy together. They were acting very much in love, she kept hugging him," the source added.
The duo came to attend the wedding of chef Dave Beran and his fiance Jamie Schneiter.