I don't think you can, because they are completely fixated with territory maps, hours and doors to knock on (and literature to present).
How many years have JWs been active in the UK? Well over a century.
How many hours were spent "preaching" in the UK last year? Must be well over 500,000 hours.
If you were to ask a member of the public what JWs believe, now many would you have to ask before anyone mentioned God's Kingdom? 100? 1000? 1000,000? Despite all the hours they spend knocking on doors, all that people know is: No blood, no Christmas, and possibly no birthdays. If that is fulfilling their dedication, they are doing a pitiful job.
You don't need a map and a door to knock on to preach. You witness through your life and every encounter you make.
But they won't understand.