Click Add a contact.

Type part or all of the name of the person you want to add, click Next, click the name in the Search Results list, then click Add.

or

Select Use this User ID and type the user ID of the person, then click Add.

or

Click Advanced, click begins with, contains, or equals from the drop-down list next to a field, type the information you are looking for in the field, then click Next. Select the user you want from the Search Results list, then click Add.