Meg is wearing a short hair style with layering throughout.  She made this style very popular about 10 years ago.  Long, side-swept bangs make this a great modern day look as well.

Create this style on your own by applying a styling cream to the hair and blow drying the hair using a large round brush.  Direct all layers down and under.

Create an extra smooth finish by running a flat iron over the entire head, from roots to the ends.