Behavioral scientists have conducted hundreds of studies about the differences between powerful and powerless words and phrases. We are especially smitten with research led by Jonah Berger at the University of Pennsylvania and by our Stanford colleague Jennifer Aaker. We draw mostly on their work to generate five tips about the kind of talk that provokes people to act, persist, and develop imaginative solutions.

As social scientists have discovered, interrogative self-talk is often more valuable than the declarative kind.

Questions, whose potency we’ve seen in both interrogative self-talk and in pitching effectively, change the rules of engagement and therefore the nature of the interaction itself. The conversation becomes more of a dance and less of a wrestling match. That’s something that Fuller Brush founder Alfred Fuller intuited years before improv was ever invented. “Never argue,” he wrote. “To win an argument is to lose a sale.

Keth Johnstone… Impro: Improvisation and the Theatre.

Impro: Improvisation and the Theatre by Keith Johnstone.