Why it worked
This post likely performed well due to the popularity of the individuals featured, particularly if they are known figures or celebrities. The inclusion of a recognizable event like the FIFA World Cup on the cap may also have contributed to engagement.
Summary
The first slide shows a selfie of two people, one of whom is wearing a baseball cap with "FIFA WORLD CUP 26" on it. The second slide shows the same two people hugging, with other people and a camera operator in the background. The third slide is another selfie of the two people, with the person on the left holding up a phone.