Audience segmentation in display buying means grouping people based on things like location, age, device, or interests, then showing ads that match what they care about. For example, if an offer is made for Android users, it’s better to target only those using Android devices. This helps cut wasted ad spend and improves the chances of getting conversions. Some ad platforms even let you target based on behavior like recent browsing activity. By testing different segments, it becomes easier to see who responds best. Keeping the message and design aligned with each group also helps. Instead of one ad for everyone, using smaller audience groups can lead to better engagement. Anyone else tested segmenting in display campaigns?