Caravaggio is my favourite painter. He said "you don't just look at my paintings, you feel them" and that is exactly what happens to me, I feel the paintings as if they were alive.
The painting shows an expensively-dressed but unworldly boy playing cards with another boy. The second boy, a cardsharp, has extra cards tucked in his belt behind his back, out of sight from the mark but not the viewer, and a sinister older man is peering over the dupe's shoulder and signaling to his young accomplice. The second boy has a dagger handy at his side, and violence is not far away. It was the second such painting Caravaggio created. Year 1594.