How do you curl hair with straighteners?

I have GHD's and i know u can curl with them but everytime i try it, it doesnt work? do you need to let them heat through for some time first?How do you curl hair with straighteners?
Here's a great tutorial:How do you curl hair with straighteners?
Look it up on youtube they have a lot of tutorials on how sorry it is kinda hard to explain in words! :)


Look up this





How to curl hair with a straightener or you could put the brand of you straightener it might not come up though,








hope it helps! :)))