Fringes differ in the number of strands, but the basic principle of applying them is similar to that shown here.
1. Insert a crochet hook through the first outside stitch where you want the fringe to be positioned, from the wrong side of the fabric to the top. Use the hook to grab one strand of each of the four colors of yarn.
2. Use the hook to pull the yarn through the stitch.
3. Cut the yarn, to the approximate length of the finished tassel.
4. Feed the ends of the yarn through the loop.
5. Pull the loop tight.