How do you decide which session's price action to trust for EUR pairs?

European session liquidity often sets the early direction for EUR crosses, but Asian-session drift and the US session's data releases can reverse much of that move by the close. Traders who anchor to one session often find their read of a level changes depending on which hours they are watching. A useful way to frame it is to ask which session's volume and range actually carried the move: a breakout during thin Asian trading behaves differently from one that follows the London open with heavier participation. Public volume and session-range data can help test whether a given pattern has historically held up across sessions, though it is worth being cautious about how much a short sample can show. I am also curious how others handle the overlap window, since the London and New York hours can produce very different behaviour in the same pair. What rule, if any, do you use to decide which session's signal gets priority when they conflict?