Hint

A hint is an extra piece of information or a clue that Networkers give you regarding a mission.

Networkers will send you mail when you befriend them, asking for some sort of favor. This is usually to allow you to complete the campaign you are undertaking. If you reply with "Could you please give me a hint" under the blue "For Networkers" section of the mail, they will often send you a clue of what to do next, such as an extended checklist.