What do fingers crossed mean?

"Fingers crossed" is an idiom or expression used to convey a sense of hope, optimism, or a wish for good luck. When someone says "fingers crossed" or crosses their fingers, it is often done with the belief that this gesture may bring luck or increase the likelihood of a positive outcome in a specific situation. It is a common way of expressing hope or anticipation, particularly when there is uncertainty or when someone is waiting for news or results. The phrase is often accompanied by a hopeful attitude, as in "Fingers crossed that everything goes well!"