5. Crossing your fingers to wish for good luck 交叉手指期盼好運

One theory of this is that during the Hundred Years War between France and England, archers would cross their fingers before pulling the bow string in order to grant them good luck. Before that, it was also a secret sign between members of Christianity (when it was illegal).

一種說法是：在法英百年戰爭時，弓箭手在拉弓前會交叉手指以示好運。在此之前，這也是基督教徒之間的暗號（當時這樣做是違法的）。