Don’t just hand out leaflets. Make it fun. Make it unusual. Make it memorable.
In the 1980s, American activists opposed to U.S. military intervention in Central America dressed up as waiters and carried maps of Central America on serving trays, with little green plastic toy soldiers glued to the map. They would go up to people in the street and say, “Excuse me, sir, did you order this war?” When the “no” response invariably followed, they would present an itemized bill outlining the costs: “Well, you paid for it!” Even if the person they addressed didn’t take the leaflet, they’d get the message.