a candid photo of a young lady sitting at a restaurant table.
A young woman is smiling and looking away from the camera.
The young lady could be looking at or away from the camera, neither is certain.
A person in a candid photo is not likely to be looking at the camera, nor does a person being at a restaurant table imply they are smiling
Candid photos can be taken at places other than restaurants and you don't have to be smiling in photos.