TellTruth,
As I told you before, and you appear to be heeding this advice, don't "try anything" to open your loved ones eyes until you study that book.
In the mean time, by all means gather any information or ask any questions you want. The key is not to ask a question, whose answer is "jw are bad". Rhetorical questions are also probably not a good idea.
You need to start doing something, and now is as good a time as any. You have to cultivate a persona or a character. Kind of like an actor. You are some one who is "open to the truth" (that is lingo for beleiving the dub version of truth). Seeking truth is your highest motivation. What that means is you are willing to look at facts or information that could cause you to reasonably conclude that the jw are the one true religion.
Now the way to keep this persona and not have it be phony, is to actually mean it. Let me explain. You are operating in an open paradigm. The jw will like this at first because you are open to their gibberish. They will eventually be irritated by it though, because that also means you are willing to look at facts and info that might lead you to the conclusion they ARE NOT the right religion. They will be annoyed by this, but they can't defend their position that you shouldn't look at such things in any rational way. They will mumble something about apostates. This is just for future reference mind you. Don't go causing any trouble yet.
Just work on your persona. You are interested and open. And start thinking of these folks as victims, not hostiles. It will make you more believable, and it is actually what they are.