Well don’t let the JWs know that you talked to an exJW online or they might stop coming so they don’t catch apostate cooties.
I hope you can keep the lines of communication open with them and always show them charity. That way when they sit in the Kingdom hall and hear about how all the worldly evildoers are going to be destroyed, your smiling face will come to mind and they might start to question.
I make a point of being friendly to everyone who comes to the door on a religious mission. Even if I just say, “I’m sorry, I can’t talk,” they can see from the houseful of children trying kill one another that it’s not about them, personally.
I find the diligence of JWs and Mormons impressive, and I wish more Catholics were open, if not so regimented, in sharing their faith with others.