You can search for customers in a few ways. One way you can search for them is the search bar at the top of the page. You can also specify the results to Customers by using the categories drop-down menu on the left of the search bar. 

Another way to search for customers is to use the local search box at the top of the Contacts page, You can use:

  1. Search box:
    Use the Search box to search by Name, Organization, Email, Job Title, and Notes

  2. Smart Filters:
    Or use Smart Filters tab on the left side of your Customers page to search by Tags, Age, Groups, City, Country or Gender.                                                                                                                                                                                                                 
  3. Segments:

The segments tab also allows you to easily reach for customers who you've grouped based on a certain criterion and filters.