Rolling on loot, how does it work?

[surrel]

I meant "when people roll on the same loot piece".
For example, if during Amdapor Keep a coffer contains a Strategos Ring, one party member passes and the other three members roll Greed on it, how does the game decide who to give the loot?

In this situation, greed takes priority over pass so the game will "randomly" roll numbers on the other 3 and whoever has the highest roll will get the item. You can see in your chat log who rolls what number.