Adding Individual Contacts 

To add a contact to your account, click the "+" icon in the top-right, then click "Create Contact".  Enter the contact's information, select any groups and sharing options, then click "save".  Contacts can later be edited at any time.

*Please note: any lead source automation rules you have set up will not be executed for any contacts entered into the system manually. 

Adding or Importing a List of Contacts

Contacts may also be imported to your account through a .csv spreadsheet file.  Please read this article for more information.