Page 50 is very telling...
EVIDENCE OF YOUNG PEOPLE :
This can be used to show that they are normal.
Identify and interview young people from local
congregations who have been raised as Jehovah's
Witnesses and, in the eyes of the presiding overseer, are
spiritually minded but also enjoy the normal healthy
things that young people do. They don't have to be
competitive to enjoy sports . Be careful that they don't
get the impression that they are in a demonstration at
the circuit assembly, when they would show that the
first things in life are service and going to the Kingdom
Hall. Show hobbies, crafts, social activity, sports, and
especially plans for the future . Be careful they don't all
say that they are going to be pioneers. Plans can be
trade, getting married and having children, journalism,
and all kinds of other things. Maybe you can show an
interest in art and the theater. They must be clean,
moral, honest, but with the interests that you would
expect from other young people.