How do you nudge people to register as organ donors? Studies said 8/10 people were positive, but far from 8/10 were enrolled. How do you nudge people to register as organ donors? Studies said 8/10 people were positive, but far from 8/10 were enrolled. How do you nudge people to register as organ donors? Studies said 8/10 people were positive, but far from 8/10 were enrolled.