How to Say 'Good Luck' in English
English speakers have many ways of saying "Good luck." Here are just a few of the most popular expressions.
"Break a leg" may sound strange, but it's one of the most common ways to wish someone good luck. For example, if a friend says, "I have a big exam tomorrow," you can reply, "Break a leg!"
This expression means "to really impress a group of people." It can be used in the same way as "Break a leg," for example, to wish someone luck before a speech.
So if your friend tells you that she's worried because she has to give a speech at work, you can reply, "You can do it! Knock them dead!"
Many years ago, people in Europe began making a cross with their fingers as a symbol of good luck. Today, some people still cross their fingers – usually their first and second fingers on the same hand – before or during important events.
So when someone says, "I'll keep my fingers crossed," or just "Fingers crossed," they mean, "I hope everything goes well."
To blow someone away is to surprise or impress them. You can use "Blow them away" in the same way as "Knock them dead" and "Break a leg." For example, "Don't worry. You're gonna blow them away at the concert tonight!"