Cute Girls Hairstyles did a one-sided version of this, and I think Mindy explains it so well, that there is no point of me trying to do instructions, click here for a link to CuteGirlsHairstyles video tutorial on the 4-strand slide-up braid. When you do this 4 strand braid, there is one strand that will never get to the outer side, in the end you hold onto that strand and slide the rest of the braid up (this will all make sense if you watch Mindy’s video tutorial)
So, for my version, I just did the 4-strand slide-up braid on both sides, and tied it back. I love this one because it looks a bit unusual and makes people look twice.
You will need reasonably long hair for this one, a bit below shoulders, to be ably to have long enough braids to “slide up”. Also, the problem with smaller kids is, that the hair easily sticks out from the middle, but to prevent that, you could tie all the hair and the little braid into a low ponytail at the back.