Four people walking beside each other down a street, one of the men is turned around looking toward the camera.
A group of friends are headed to Wendys
The people walking down the street next to each other do not have to be friends, they also don't have to be headed to Wendy's.
Not all people are friends.
Four people are not assumed to be a group of friends. Walking down the street does not imply that they are headed to Wendy's.