Lawful: Means the character has a certain code they live by that may or may not agree with the law of any specific land. If a lawful character is given a similar scenario 10 different times, you may get 2 results: he is methodical and predictable.
Chaotic: Means that a character has no specific code of conduct. They do what strikes their fancy at the moment. If a chaotic character is given a similar scenario 10 different times, you may get 11 or 12 different results: he is impulsive.
Good: Means that a character will go out of their way to help others. They are always on the lookout to lift the plight of others.
Evil: Means that the character will go out of their way to inflict suffering on others. They are always on the lookout to improve their own situation, at the expense of others preferably.
If a PC is not following their stated alignment, it IS possible that their alignment will shift…
In an attempt is to provide an opportunity for in-party RP that is not normally given, the DM will not put any restriction on alignment. Alignments are expected to remain OOC information (with the exception of classes like Paladin: Everyone knows they’re stuck up).
Caveat: It is not the DM’s job to adjudicate in-game personality conflicts. Players will be given a lot of freedom in this campaign to allow their characters to do what they would do, but there ARE repercussions to all actions. Players have been chosen for their maturity, and are expected to keep game-life and real-life separate. PvP will not be expressly forbidden, and PvP retaliations may occur. Please remember to keep RL and RP separate!
When in doubt, ask the DM: Secrets from the party will be kept in confidence, etc.