Hello
Firstly note that a blunt fringe is best styled when it is grease free. Because its going to sit ontop of make up and moisturiser its best to keept the hair clean so that it doesnt become to greasy. Next rough dry your hair and whip out your flat iron. Remember to apply a heat protecting spray to your hair. Flat your hair down but try and hold your head back a bit and slightly curve the iron as you reach the ends, this way you will get your hair straight without the volume but with the ends turned in a little not giving you that jagged ends. I hope this helps