How do you block curves?

Well, I don't know so in the end I didn't.

The Feather & Fan Shawl/wrap/throw/thing from Folk Shawls in Posh Yarn, Emily, Ocean and Patter looks like this.

Real life colours are much more vibrant and delicious and the Emily was lovely to knit with. Blocking would make it a tad wider and if I ever figure out how to block a curve smoothly and successfully then I will do it, it'll open the lace up a little too. But for now this is it and this is where it lives!