Follow the crease and tuck one petal under the center brad so that it lies flat.
Continue easily tucking each petal easily under the center brad. When you get to the last 2 petals, the next petal has to tuck under the previous petal and the center brad. The very last petal tucks under the previous petal and the center brad and the entire card is back to it’s original lovely self!
Hope this helps! Joy