Piano stairs – TheFunTheory.com – Rolighetsteorin.se. How do you encourage people to take the stairs instead of the escalator? The video shows that people start taking stairs when the steps are made to look and sound like piano keys. Northing else changed. People aren’t give money or bribed. They are still presented with two options – stairs or escalator – yet the stairs are chosen more often, even though they obviously require more effort than the escalator does. People stop avoiding effort when a task is created to be more fun.