I see a man talking with his son. From their appearance, they don't seem like they come from a rich family. Forget about their status, but look at the way they interact. They may not have 36 cars or a yacht, but they look happy. Smile that appears from his son's lips shows that he feels joyful. The warmth can be seen from the way that man gives a candy to him and touches his forehead. A warmth that not every kid can ever get.
It might sounds silly, but if u were me and saw that father-and-son moment, you would say "I miss you dad"