I have followed a couple important rules.
First, be prepared. Read, ask questions, and think about it. Second, avoid going public with a decision until absolutely necessary. New information may arise, and it is hard to go back on a commitment to vote a certain way.
In roles similar to that of a Board member, I have researched the question, listened to constituents, consulted with outside experts as appropriate, and considered the recommendation of senior staff who are in their positions due to their qualifications. Then I have used my judgment to debate and vote as I see appropriate. The optimal decision is made after diverse and well-prepared points of view are really heard and discussed.
Guidance must be considered in the context of local circumstances and liability associated with deviating from direction from state (or other) authorities. The right answer is more important than popularity and re-election.