What does it mean exactly "real Twitter followers"?

On Fiverr and similar services is possible to see ads like "I'll see you XXXX Real Active Twitter Followers" - what is it exactly? Just Twitter accounts with filled out city, bio and profile picture?

Or some kind of accounts which are managed by real people?

Bump.

I understand it to mean accounts which are managed by real people, but I think it can vary from seller to seller as to what their interpretation is.