Two ways to tell if a Contact is Invited:
Select the Contacts page in the Left-Hand Menu.
Note the tabs at the top of the page.
New - Invitation has not been sent.
Invited - Contact has been invited but is not Active.
Active - Contact has accepted the Liscio invite.
Expired - Contact invite has expired (link expires in 7 days) and must be resent.
OR
Navigate to a Contact's record.
Refer to the color of the dot next to the contact's name.
Green = Active
Yellow = Invited
Gray = New
Red = Inactive