New to smartphones so I don't have a contacts list. Installed Viber latest update but I can't figure out how to add new contacts to Viber manually....when I type the new contact's phone number a message pops up that says I am adding a non Viber contact even though I know the contact has Viber installed.....all I found in the net are Q/A on how to sync existing contacts list......any help will be much appreciated.....thanks in advance.