How John and Paul's reaction was different is that John wanted to go to the police about what was in the bag. Paul wanted to find out what the map led to. He wanted to investigate and see what they could find.
How their reactions were similar is that, at the end, John was in to find out what the map led to so Paul and john wanted to find what the map led too.
Explanation:
In chapter 4 in the story summer in New York city all of this information is their.
