It depends on how you score with your answers and you have to talk to Khamari at least twice in each event you have with him. When he tells you before you go up to fight Garrik *I found this blah blah* he hands you a spehere and its the trainer sphere :/ I'm not sure where else though. I heard something about the Macalania Temple area but I don't really remember SeedRankLou would probably know more, he's the resident FFX-2 doo hickey guy, or Kupo xD I've forgotten most of this stuff. I can look it up in the official guide but it's most likely wrong xD