Most human resource issues can be focused into one area: practicing common sense.
Jessica De Vault, a columnist for the Fayetteville Observer, went to a corporate holiday party as a guest of an employee. She'd never been to such a party before. After attending, she was moved to write this column outlining ways to behave at a company party.
Ms. De Vault is not a human resources professional nor employment attorney (as far as I know). But her advice is absolutely spot on.
Most of the time, common sense (if actually practiced) is the best way to develop and follow guidelines for good professional behavior.