So many actors have bad kiss stories, and Emily Blunt has some helpful advice for anyone who is looking to make their on-screen kisses more enjoyable for all parties involved.

The 40-year-old Devil Wears Prada actress recently opened up about what to keep in mind while preparing to film a kiss.

During a conversation with Oppenheimer co-star Matt Damon, she laid out the etiquette.

Keep reading to find out more…

While filming a segment for LADbible, Emily and Matt both agreed that you should let someone know if their breath smells, which led into a conversation about kissing.

Thankfully, Emily had some easy advice to follow!

“When you do like intimate scenes, there’s an etiquette. You gotta brush your teeth, use some mouth wash, stick some gum on the roof of your mouth. And then we can kiss,” she said. Matt strongly agreed with all of her advice.

He also revealed someone that he said it was “hell” to kiss in front of the cameras.

Press play on the interview segment below…