If your little girl has a hard time sitting still, like mine, I would gather snacks and put on a movie or favorite tv show to distract her and help her hold still. These styles are nice because they don't involve any heat, like curling irons or flat irons.
Styles tend to look cleaner if you take the time to get parts very straight, which is also much easier with wet hair and gel or pomade. Note: If using pomade, a tiny bit goes a very long way!
French Ponytail for Toddlers: http://www.onefunmom.com
Uneven Rope-Twist Style: http://babesinhairland.com/hairstyles/uneven-ropetwist-braid-style-video/