Hi Pajaha -- and welcome,
I love it when they call. I always get a chance to divulge the fact that I studied with them many years ago. Not a lie -- I simply don't expose the fact that I then became a MS, an elder, developed a bothered conscience that resulted in disfellowshipping.
Their inevitable question -- "Why did you stop studying?" -- is the perfect lead to my introduction to The Great Watchtower Contradiction, an 11 minute read designed for new ones but which poses questions on topics that the most seasoned JW would cringe at.
Contradiction contains a table handout that you can snip for purse or billfold. I always keep my billfold handy.
Len