Use the URL path retargeting method to cookie users based on what pages/sections they visit to on your web site. This method accepts wildcards. Here are some examples:
Scenario: You want to create an Audience that includes everyone who visits any page on your site. (This is actually the default list we have loaded into all new accounts)
Solution: Create a URL Path Audience with "/*" as the value. This will cookie anyone who visits any path on the site.
Scenario: You want to create an Audience of people who are already converted users of your web service.
Solution: Let's assume that people who log into your app go to a members-only page at domain.com/dashboard. To cookie all those members, we would create a URL Path Audience with "/dashboard/*" as the value. This will cookie anyone who visits that page. The only people visiting that page are registered users. Therefore you'll be building an Audience of your registered users.
Scenario: You want to create an audience of people who visit any page of structure "domain.com/orders/########"
Solution: Create a URL Path Audience with "/orders/*" as the value. This will cookie anyone who visits any page beginning with domain.com/orders/
You can use wildcards in a variety of ways! For more information and examples, take a look at this article.