This is an easy tutorial on how to create a Triple Topsy Tail:
1) Section off the top part of the hair and tie with a small elastic (this is great if you want to get a fringe/bangs off the face). Take your topsy tail and push through the hair above the elastic, thread the pony tail of hair through the topsy tail and pull the topsy tail down and under.
2) Section off the middle section of hair and include the 1st pony tail. Repeat step 1.
3) Take the remaining hair including the pony tail from 2nd topsy tail and tie again. Repeat steps as above.
N.B: You can achieve the same effect without a topsy tail by making a hole through the hair behind the hair tie and pulling the pony tail over, through and under.