cross your fingers
Intermediate (B1)informal
To hope something goes well.
"Cross your fingers that the weather stays nice for the picnic."
Hear it in context

"PSYCHIC Program!" - Neuroscientist on Remote Viewing, STARGATE & Telepathy | Julia Mossbridge
Julian Dorey · 171:33
And cross your fingers.

Learn English While Playing Geoguessr with Me! 🗺️🌏
Learn English with Bob the Canadian · 44:07
Cross your fingers that uh the next [snorts]

Why are the Wellness Elite Getting Sepsis? | Mark Hyman and Jordan Peterson
Scott Carney · 11:55
"Cross your fingers and here's some painkillers." And

Everyday English: Say What People Did — Gestures & Reactions
Adam’s English Lessons · engVid · 6:30
If you cross your fingers for someone, you go,

Learn English While Playing Geoguessr with Me! 🗺️🌏
Learn English with Bob the Canadian · 44:01
Uh let's uh Let's cross your fingers.