1. Set up a remarketing list: Before you can start remarketing, you need to create a list of people who have visited your website. You can do this by adding a remarketing tag to your website code.

2. Create remarketing campaigns: Once you have your list set up, you can create campaigns specifically targeting those users. You can use the same targeting options as with any other SEM campaign, such as demographics, device, location, and more.

3. Monitor and adjust: As with any other SEM campaign, it’s important to monitor your remarketing campaigns and adjust them as needed. Pay attention to click-through rates, conversions, and other key metrics to ensure your campaigns are effective.