Leverage on word of mouth

Why not create the right conditions to make people talk about you?

Each person has a network of 8 to 12 people in his close network of contacts. If a large percentage of recipients forwards your message to a large number of friends, your message spreads exponentially.

This is what Lean Marketing is about. The virus will multiply. Effortlessly and exponentially. In places where you will not expect him to multiply. At the coffee machine. During lunchtime. On Google. Maybe in dreams.
(but rarely during a sales presentation or in a telemarketing call)