Hi and welcome tiredroadie!
Our family stopped following the Watchtower after 4 generations and 4 decades.
We were asked a simple question by a believer:
"What is the gospel in one word?"
Of course we soon discovered for ourselves that the liberating gospel message (according to Paul, Moses, Isaiah and Psalms) could be found in the Watchtower library, albeit fragmented and not focussed on.
However we also soon discovered for ourselves that it is glaringly obvious that Watchtower followers do not have the liberating gospel message in their hearts or on their lips.
We also soon discovered for ourselves that there is nothing Watchtower leaders hate and fear more than the liberating gospel message according to Paul.
Maybe you could get your friend to "teach" you the liberating gospel message (or "Good News") according to Paul?
Maybe you could ask her to "help" you work out what percentage of the Bible's references to "Good News" are by Paul, using the Watchtower's own online library ( http://wol.jw.org/en/wol/s/r1/lp-e?q=%22good+news%22&fc%5B%5D=bi ).
Maybe at a later stage you could ask her to once again "help" you figure out how many times Paul mentions the word "Kingdom" in the same sentence as the phrase "Good News", and why (zero out of 85 times, http://wol.jw.org/en/wol/s/r1/lp-e?q=%22good+news%22+Kingdom&fc%5B%5D=bi&p=sen ).