How can I curl my hair to make it like Bella Thorne's?

Get a curling iron with a large barrel. Wrap the hair around the barrel without using the clamp for a few seconds, and release it. Do the entire head, and run your fingers through it and some pomade to loosen the curl. For the InStyler, wrap it around the barrel, close it, let it brush for a minute. I've had much better results with an unclamped curling iron rather than the InStyler.