One day a blonde decided to get a cell phone. After talking with the salesman, she finally selected a model and signed up for the service.

Over the next few days she called her friends and gave them her new number.

A few days later while shopping, her phone rang for the first time.

Surprised, she answered it. It was her best friend. Completely dumbfounded, she asked in amazement, "How did you know where to call me?"