Curling your hair with a flat iron!!?

Ohkay, so i know how to curl my hair with a flat iron but for some reason whenever i do it (and i am doing it right i know that for sure because my friend does it the same exact way as me and it comes out perfect) its not getting as curler as i want it...its kind of stiff...and not curly....is there anyway possible I can get my hair to curl more or am i doing something wrong..plus i have thing hair so maybe thats just it..Curling your hair with a flat iron!!?
Try using a curling iron or those heating things that are like heating irons but they look like a stick on a handle. Flat irons can curl but they weren't meant for curling and therefore won't give you curlier curls. Curling irons and 'stick on handle heating irons' were made for curling and therefore will give you curliest curls. Or you can use those 'curling cylinders that you put in your hair'Curling your hair with a flat iron!!?
depending on what kind of Straightener and hair type you have, hold and clamp for longer and also Spray each section of hair with good quality hairspray before curling.

thin hair? try a thickener? Tresemme 24r body might work as it will also add volume?

Hope i helped :)
I have thin hair too and used to have this problem as well. Make sure you always spray a heat protector first so you won't damage your hair and then turn your flat iron on to it's highest setting and wait for it to get reallllyyy hot. Then always curl with the curls turning away from your face it shapes it better. Lastly spray a lot of extra hold hair spray. GOOD LUCK!
-Wrap it around tighter

-use hair spray

- Hold it on the iron longer
maybe you're straightener isn't good for curling...

try buying a new one %26amp; see it's heating options.