It really doesn't matter when trying to point out stuff to them, even with the facts to back you up, most of them won't listen. They will say what you are telling them are not true. To me trying to talk to a JW, who has no interest in leaving is the same thing as taking a ball and bouncing it on a wall. Nothing you say to them will sink in those thick skulls, it will just be bounced back to you. At least that was how it was with my relatives. Then to show how even more stupid my JW relatives are, a couple of them actually said to me this. "I've invested too much of my life to leave it, even if it is all a lie."
Don't get me wrong, never give up trying, because there are some who will actually wake up because of certain things that happen in their own lives, and that will make them think.