You want to know how to filter your tagged customers
1. Within your Customers tab, click the +Filters button
2. The drop-down menu(s) represent the different Tag Groups you have setup

3. Use the drop-down menu(s) to select the Tag(s) you want to filter by.
4. Click the Search button on the right-hand side.
5. A list of Customers associated with the selected Tag(s) will appear.