Fishtail braids hairstyles are actually suitable for all event types because all women can apply it for any event from non formal, semi formal and formal look. You just need to style and suit it with the type of event which you attend to. For non formal event you can try fishtail braids which are quite messy which give sexy and stylish look. Many teenage girls apply this braid for its chic and versatile look.
Then, if you are going to attend semi formal events, try to apply fishtail braids with side swept style. Side swept style lets you to stand out more certain side of your face. Moreover, you can add some simple accessories like beautiful small pins for keeping the side swept is neat and sleek. This is one of fishtail braid hairstyles which you can try.
For formal occasion, really sleek and neat look is more preferred. For that, you can try French style which gives more formal and sleek look. Try to apply fishtail on both front sides of your hair and then gather the braids on the back and after that pin back the braids. Fishtail braids hairstyles always result on elegant look with French style and you can use it.