Ineffective: violence, picketing, yelling to get your points across, bizarre outfits and demonstrations outside of Kingdom Halls/assembly halls, airing rumors and unsubstantiated "information" and (unfortunately... ) most revelations or discussions of the child-molestation cover-ups, expressing doubts to Jehovah's Witness familly members, asking elders for 'assistance' in understanding (coz' that could REALLY backfire on you), pursuing a "worldly" lifestyle in rebellion (i.e. drugs, pornography, multiple sexual partners, excessive drinking and other versions of immature behavior), being vocal about your concerns and doubts BEFORE building an adequate 'escape' route...
Effective: Using older - or better still, fairly current - Watchtower Society literature to show their flip-flops and contradictions, discussing - extensively - the number of brothers and sisters on anti-depressants and other psycho-tropic drugs - but without appearing to be 'criticizing', reading directly - and extensively - from ONLY the bible, especially scriptures that contradict or expose the Watchtower Society's man-made dogma, mentioning scientific studies that show that the number of earthquakes/floods/famines/wars/financial downturns nowadays are no greater than those in the past, also scientific studies that indicate that far greater numbers of people nowadays have a much HIGHER standard of living than in the past - ESPECIALLY during 'biblical' times...
Zid