“IT’S THOUGHTFUL. IT’S MINDFUL. IT’S HUMBLE,” the actress wrote of her birthday celebration

Rumer Willis is celebrating her birthday by participating in the “demure” trend sweeping social media.

As she turned 36 on Friday, Aug. 16, the actress and daughter of Demi Moore and Bruce Willis celebrated in a very “demure” and “mindful” way — with a trip to a beach.

The House Bunny actor documented her sunny, oceanside celebration on Instagram with a video of herself rocking a pink bikini — and cuddling with 1-year-old daughter Louetta in the sand.

“CELEBRATING MY 36TH BIRTHDAY AT THE BEACH. LOCALLY, AND NOT IN EUROPE..,” she wrote alongside the clip. “IT’S THOUGHTFUL. IT’S MINDFUL. IT’S HUMBLE…✨IT’S DEMURE✨

In the caption, she wrote that “✨ 36 is the new 26 ✨” and added the hashtag: “#HappyDemureBirthday

The actress, who shares Louetta with boyfriend Derek Richard Thomas, also reposted several of her birthday tributes on her Instagram Stories — including a sweet post from her famous mom, 61. Moore also shares daughters Scout, 33, and Tallulah, 30, with ex Bruce.

“Rumer, you will always be my baby!” the movie star wrote alongside a throwback mother-daughter shot. “Happy birthday, my love ♥️ To a new year beyond measure.”

“I love and adore you!” she added.