Even though I was just an unbatized publisher, I find it interesting how KH are different from each other in practice.
For example, in my area it wasen't frowned upon or looked down for speaking or hanging out with non JW members of your family. Your family is your Family which most JW around here think.
Also you can be a stranger who attends a public talk and you can answer or ask a question. I've never seen that discouraged. Although the strangers in my experience has some idea or some previous contact in some manner with a JW that probably made them attend a meeting.
But......A Stranger can participate.
As far as subtle Control Methods, I find that persons on the edge, or zealots who were that way before they became a JW . Except they transfered that behaviour into the "work"
Ignorant, people who don't question, accept everything thats told to them, followers, weak minded Before they were JW's will continue to be so when they are. If they were in another religion before finding the "light" there were probably like that there.
Those who were always 50 questions <like myself> will continue to be fifty questions even as they dip into the JW life.