Hi and welcome, Visitor!
I'm another non-jw, and would dearly like to get my SIL and a couple of others out. Unfortunately it is very difficult to do.
As you've found, everything has to be done the jw way. Of course this young man will arrive in a suit and "study" the "Bible" with you; that is, he'll bring a book called "What does the Bible really Teach" and that's what you'll study.
Then he can count time.
If you are not amenable to this, you are under Satanic influence and not good association. He will be fearful of contamination and being seen to be "weak" and willing to associate with "Worldlies". Cannot count time, so he's not keen on this.
Sending books (they call it "apostate literature"!) will probably make him even more wary; now you are trying to convert him! He'll avoid you like the plague.
Bottom line is, unless he's willing to spend time with you you have little chance. And if he is, simply encourage him to relax and have a good time. Talk about sport or cars or something. Any mention of religious stuff and all the warning bells go off.
Can I , why is it important to you what he believes? And does it relate to your own beliefs or spirituality?
Retro