Create Audiences Based on Interests.
There are several ways to create audiences based on interest. You can use a search engine to find people with similar interests as yours. You can also use a social media platform to find people who share similar interests. Finally, you can use a data provider to identify people who have purchased certain items in the past.

Target Specific Demographics.
Once you have identified an audience, you need to decide what type of ad will work best for them. If you are targeting people interested in sports, then you might choose to run a display advertisement. Display advertisements appear at the top of the screen and take up more space than other types of ads. They are usually shown when users scroll down the page.

Buy Ads Based on Location.
You can also buy ads based on location. This means that you can purchase ads that only show up in certain locations. For example, if you own a restaurant, you might want to advertise during lunchtime so that customers see your ads while eating.

Buy Ads Based on Device Type.
Another way to target your ad campaigns is by device type. If you sell products online, you can use this data to determine what devices people are using to view your site. For example, if most of your users access your website via mobile phones, then you should focus more on mobile advertising.

Buy Ads Based on Time of Day.
You can also purchase ads based on when people visit your site. This allows you to reach them at times when they are most likely to convert. For example, if you sell clothing, you might choose to advertise during the morning commute so that people who work in an office will see your ad.