To give a little history on the pigtails. I actually dislike the look of pigtails. My mom will always put my daughters hair in pigtails when she has her because I won't. My daughter loves them so this is my version of the pigtails.
I started by pulling her bangs to the side ( her bangs are still growing out) I gave them a side swoop
Then make your center part.
Here is were I added a little flair. I pulled a small amount of hair and secured it with an elastic (as shown below) I made a pull thru twist in it. and then pulled the all the remaining hair into a ponytail.