You start with two pieces of hair like a regular fishtail but its on the crown of your head!!!
You take a side piece and cross it over your original right piece!
You do the same to the left side! Cross a side piece over your left original piece!
Just tie it off!
If you want the fishtail tighter, just hold on to the strands you just crossed over, tighter!
It will look like this when you're done!👍