You can use audience targeting to show your ads to:
Specific groups of people, based on their location
Specific websites, based on specific interests
Group of websites, based on specific interests
Specific groups of people, based on their interests
Explanation: Audiences: Depending on your advertising goals, you can choose the audience that best matches your customers. To drive brand awareness, use affinity audiences to reach TV-like audiences on a broad scale. To reach as many potential customers as possible with an affinity for a specific product area, you might try adding custom affinity audiences. To reach specific audiences actively shopping for a product or service, use in-market audiences instead. Read more here
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