Answer:
The flagman change during crossroads: A sad vaudeville when He becomes mysterious
Step-by-step explanation:
Crossroads: A sad vaudeville is a play that has a constant theme of loneliness and sadness, it only has three characters and the flagman says what may seem incoherent phrases but in fact he is giving clues to the man in a mysterious way that he is not able to see, since he is too young to see things beyond what the eyes can show.