How to do it
Ch 5, YO twice, insert hook into 5th ch from hook, YO, pull up a loop, YO, pull through 1 loop on hook (ch made), (YO, pull through 2 loops) three times (first Ftr made), *YO twice, insert hook into the ch made at the base of the stitch, YO, pull up a loop, YO, pull through 1 loop on hook (ch made), (YO, pull through 2 loops) three times (second Ftr made). Rep from * until you have the desired number of stitches..
Visual Steps
Ch 5
Yarn over twice
Insert hook in fifth ch from hook
Yarn over
Pull up a loop
Yarn over
Pull through one loop on hook (ch made)
Yarn over
Pull through two loops
Yarn over
Pull through two loops
Yarn over
Pull through two loops (first Ftr made)
Yarn over twice
Insert hook in ch at base of stitch
Yarn over
Pull up a loop
Yarn over
Pull through one loop (ch made)
Yarn over
Pull through two loops
Yarn over
Pull through two loops
Yarn over
Pull through 2 loops (second Ftr made). Repeat from step 14