Dear wazers, this is the international forum, it is appreciated you post in english for everybody to understand.
There are localized forums in spanish that can help you with your questions too.
Search for your country forum in the Latin American Forums
Going back to your question, you have to be logged to facebook form your phone in the Waze application.
For this you have to go to: Menu - Settings - Social Networks - Facebook - Connect
In spanish menu: Menu - Ajustes - Redes sociales - Facebook - Conectar
Enter your Facebook credentials and then you will be logged with Facebook and be able to see your friends.
The bonus for your friends in Facebook will come, it can take up to one month to be received.
Best regards from Concepción, Chile,