Straight with Curly Ends

A: The best option for getting this look will be to blowdry the hair straight using styling gel, mousse, or your favorite styling lotion, along with smoothing serum or anti-frizz treatment.
Be sure to allow the curls to cool before further manipulating them, but once cool, you can comb out the curl to fluff the hair, or you can lightly mist the hair with spray and use your fingers to give the curls more definition.
Another variant on the style you describe is to style the hair straight, and then add in curls in sporadic points around the head, giving a random effect to the curl. Be sure to include some curls underneath the outer layers of the hair that become more readily visible as you move.
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See also:
How to blow dry hair
Styling with curling irons
Flat iron styling
Rollers styling techniques