Subtle haptic feedback on your phone or a small icon on the screen appears when a "blink-and-you-miss-it" clue is shown (like a specific background object or a look between characters). Clicking it provides a high-res still of the clue for closer inspection.
After each cliffhanger, viewers can vote on who they think is responsible. The live global results are displayed, showing how the community’s suspicion shifts episode by episode. Why it works: Buscando a Frida
It rewards "super-fans" for paying close attention. Subtle haptic feedback on your phone or a