The question still stands, James. How do you know how such a being should act when you are none of these things yourself?
If two men see a robbery in progress, and they vary among themselves in knowledge about what is taking place, it is reasonable to surmise that they will act differently. Let's assume a variance in knowledge between the two. The first man might know that he can easily wrestle the armed robber to the ground and defuse the threat. The second might know the same, but he also knows that the robber has a bomb belt and would choose to self detonate if he is physically restrained. The first man would take action, and the second would not.
You cannot even judge correctly how another being should act in a given set of circumstances, since you do not know what they might know. You might think they should have done X, when they did Y. However, they may know something (or not know) that you do not.
So what of the case of a being with all knowledge?