Why did I see my friend's name or photo paired with an ad on Facebook?

With Facebook ads for Pages, events and apps, you may see stories about actions your friends have taken (example: liking a Page or post, posts and comments you make) on Facebook paired with ads you see.
For example, you might see a story about a friend who already likes a Page that you're seeing advertised. Similarly, your friends might see stories about you that relate to the ads they're seeing. Such stories will only be shown to friends, and will adhere to any privacy settings you've set for your account.
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