Search for new contacts in Skype is only possible if you know something about the user: username, email address or phone number. To search people in Skype start Skype. Log in using a username and password.
After downloading the contact list click the left mouse button on the main window (contact list) to activate. Click "Contacts" in the control panel at the top.
Click "Add new contact". In the new window enter the desired information about the Skype user who you know: username, mobile phone or email.
Locate in the list the contact that you are interested in. Click "Add".