
Contagious

Social Currency
We share things that make us look good
Triggers
Top of mind, tip of tongue
Emotion
When we care, we share
Public
Built to show, built to grow
Practical Value
News you can use
Stories
Information travels under the guise of idle chatter
Jonah Berger • Contagious
The story of Thuan, Tippi, and the spread of Vietnamese nail salons is pretty amazing. But even more surprising is the fact that it’s not unique.
Other immigrant groups have cornered similar niches. Estimates suggest that Cambodian Americans own approximately 80 percent of the doughnut shops in Los Angeles, and that Koreans own 65 percent of the dry
Jonah Berger • Contagious
People like to pass along practical, useful information. News others can use.
Jonah Berger • Contagious
If people can’t see what others are choosing and doing, they can’t imitate them
Jonah Berger • Contagious
But coffee is a particularly good thing to link the brand to because it is a frequent stimulus in the environment. A huge number of people drink coffee. Many drink it a number of times throughout the day. And so by linking Kit Kat to coffee, Colleen created a frequent trigger to remind people of the brand.
Jonah Berger • Contagious
So rather than just going for a catchy message, consider the context. Think about whether the message will be triggered by the everyday environments of the target audience.