This article is all about the youth apostolate

One idea stands out:
The first apostles of young people should be young people 

Over the years in Hong Kong and China I've run many "English Corners'
for young English students to practise their spoken skills with "native" English speakers

Young English students love to talk to a "foreigner" of any age, but if that foreigner is a young person, there is almost a magnetic bonding

So...if for example one was using English Corners as a reach-out to young people, in any part of the world, the first "apostles" should be
.....other young people!

Jesus, please help young Christians get more involved in reach-out programs to other young people!