Fishtail braid which is also known as Herringbone braid is an easy braiding technique and has a nice wavy texture which is different then a normal plain braid.
To flaunt it better try a side braiding, so that the texture is visible more.
It is also quite popular among the young teens and college girls.
You can try different variations, but here is a video which will help you to create a simple fishtail braid at one go, have a look at the tutorial video and try it on your own.
You can also use different hair accessories to highlight the same.
Image reference: Pinterest