Basically, when you have a Facebook page, you want to make sure that the content you are producing is creating some hype. Are people commenting? Are they clicking through to your website from your post? Or are you enlightening people with information that not everybody knows? Once you have some informative, value adding and interesting or fun content on your page, people will start to engage with your page, whether that’s in visiting your page, liking the page or the post, tagging their friend in it, or commenting on it. At the end of the day, people like to be involved in something and be a part of a conversation so always try to start conversations with your customers. Once you’ve done that, you can retarget those people with a Facebook Engagement custom audience.