Possible basic traits:
Rambler: Strays a very long way from the settlement, on very long patrols ( possibly similar to the Energetic one already suggested)
Homelover: Stays within sight ( or even closer?) of his home settlement
Some more complex ones (mostly taken from historical empires/races):
Viking: Goes far, far away with lots of troops to raid other settlements, staying away for months ( well, weeks) at a time.
Greek: Maintains its own borders fiercely ( think Spartans) with disregard for his own life etc.
French: A coward! joking asides, uses predominantly horsemen.
Roman: Increased workforce efficiency, but generates more hate towards them so smaller forces will attack them more.
Others could be based on the factions, such as Vaegir settlements would create archer-heavy heroes, and they would often run from direct combat(?)