You need an iron to heat the foamiran. Pick up one flower with tweezers and hold for just a few seconds next to the iron. This will cause the petals to slightly curl in.
Once the petals are heated on the iron, quickly place on a molding mat and push down in the center with a small stylus to cup each flower. Once you push them way down to cup, leave them in the mat and the flowers will cool and hold their shape. I used an old molding mat as I found the heated flower and pushing down in the molding mat, caused small holes in the mat. You could probably do this step in a sponge.