A steak restaurant named “The Cattle Prod” wants more customers. We target their 4 nearest competitors (other steak houses) and show ads to all the people who go into that restaurant tracked by their mobile phones. They see the display ads all over the Internet on their mobile phones, home, and work computers. A certain number of them end up visiting The Cattle Prod to give them a try. They are then detected by their cell phones at The Cattle Prod restaurant and counted as a “conversion” in analytics. The customers are retargeted on their mobile phones and computers over the next few months to remind them to come back again at a future date.