Mottoing
Promoting a good motto can say a lot about you in few words.
Many mottos are in Latin, like the Marines' "Semper Fi" which means "Always Faithful."
Funny mottos are also great.
For example, in the game Galactic Civilizations II, the humans become peaceful and are almost wiped out by invading aliens. When they use their last nukes to blast the alien mothership to bits and construct a space navy to counterattack, their official motto "Per Adum Astra" means "to the stars" but their unnofficial motto is "Repense Es Caniculum" or "Payback is a bitch."