Make sure your landing page is ready to go. If you're advertising on Facebook and sending people to a website that doesn't have any content or isn't optimised for mobile devices, you'll waste valuable time and money. 2. Choose an audience that makes sense. If you sell makeup, don't target users who have indicated they're interested in fishing gear or gardening supplies—your ad is likely to be irrelevant to them! 3. Use A/B testing features to find out what works best for your audience and your brand identity. You can test different copy, images, and more with Facebook's built-in testing tools so that you can get the most out of every dollar spent on ads!