How does Pip persuade Jaggers to give him more information about Estella when he first refuses?

https://www.gradesaver.com/great-expectations/q-and-a/how-does-pip-persuade-jaggers-to-give-him-more-information-about-estella-when-he-first-refuses-84237

It isn't until Pip appeals to Wemmick's kind side that Jaggers, very impressed by this, divulges the paternity information.