The trick to convincing people that they need our message, according to Loewenstein, is to first highlight some specific knowledge that they’re missing. We can pose a question or puzzle that confronts people with a gap in their knowledge. We can point out that someone else knows something they don’t. We can present them with situations that have unknown resolutions, such as elections, sports events, or mysteries. We can challenge them to predict an outcome (which creates two knowledge gaps—What will happen? and Was I right?).
