I used to study with a JW female who knocked on my door in the 80's. Their doctrine is very informative in many ways, but still could not anwser the questions I had at the time. I was always uncomfortable with the idea of knocking on peoples doors to bring the "Good News" to folk. I have some family members who are JW, but I accept them just as they are.
I knew who they were, but I didn't really grow up with them. They weren't allowed to play with us. Later a very good friend was a JW and he and I got along famously unless we discussed theology.
I used to see them standing on the Chicago, South-Side, street corners with their magazines (The Watchtower). I never interacted with any of them. They would stand out there in heavy dresses and suits in the middle of July sweating like dogs.
I grew up Roman Catholic. My extended family is Christian for the most part. As a child, my parents always pointed out they were practicing Catholics and that was that. As an adult Atheist, I've always thought that if someone genuinely wished to communicate the way JW professed to desire dialogue with me, I'd invite them in and talk about our Nation's freedom of religious practice clause in the Bill of Rights. Once this happens however, they usually close up shop and move on.