Reputation

Reputation is the faction's way of deciding if they are content with your rule or not. Reputation is presented by a certain amount of crosses. There are three types: regular, red zone, and gold. A stable, content faction, which is more than three crosses and up to ten, is regular. If a faction is unhappy and drops below four crosses, it is in the red zone and there will be a conspiracy soon, or in some cases, an assassination threat. If a faction is very happy with you and rises beyond ten crosses, it becomes gold and and the player will receive $20,000 for every cross. But be careful, because just because you get more money for more crosses, they will gradually turn red. Why? There will be a revolution if the faction gets ten golden crosses.

Reputation Gaining
The player gains reputation by doing what the factions want, either by doing that directly through a question with that faction, or by pleasing another faction while doing the same thing above. It usually results in 1+ reputation, sometimes 2+. The player also has other opportunities to get more reputation:

Praise
Praise occurs when people from a faction cheer outside you. You can either wave to them or ignore them. Waving results in 1+ reputation for each faction.

War Victory
If you win a war all factions except the army gain 1+ reputation.

Pay-offs
If you pay off a faction during a conspiracy it gains 3+ reputation. In Dictator 2, paying off a faction costs 300 and pushes your reputation among them up to four regardless of where it previously was.

Reputation Loss
The player loses reputation like he gains it. There are also ways to lose reputation:

Elimination
If you eliminate a faction each faction loses 1- reputation.

Read also
War Reputation