what might you say if you wanted to wish your best friend lots of luck?

what might you say if you wanted to wish your best friend lots of luck?

You could say 'Break a leg!' or 'I'm crossing my fingers!'

More expressions :

•  ''good luck mate, I'm in your back''
• Break a leg!
• I hope things are good for you
• "Dont be worried, you must be can face it, I'm in your behind.
• Wish you all the best!
• Keep walking the future is in your hands.
• I'm sure you can do the best for your wishes so, good luck.