you will most likely lose your friends if you do this.
I have a friend that left recently I waited 8 years for her to come out. I made subtle hints about researching things. I asked her now how she felt when I said those things to her. She doesn't remember me saying anything of the sort. She said that she probably would have read me the riot act had I talked against the jw's. They tend to tune out things that they don't want to hear.