Where I live in the Bible Belt, Catholics have had to be able to explain their faith to non-Catholics since before Vatican 2. Many who couldn’t became Evangelicals or Fundamentalists. But then, many E’s and F’s also become Catholic. So lots of Catholics don’t really need to be exhorted by the hierarchy to be New Evangelists; to some extent that’s just a part of staying Catholic.
I don’t know how to directly jumpstart Catholics who aren’t fired up about their faith. Every New Evangelist I know is/was self-motivated to grow in faith and be ready to explain/defend it to others as the occasion arises. Just looking at the growth of vigorous Catholic faith here over the past 20 years, it’s mostly the result of an organic, informal groundswell of motivated Catholics interacting with each other and other parishioners.
I posted briefly about this recently here:
platytera.blogspot.com/2012/10/greenville-ephrathah-9-organic-gravity.html