How to crochet a bobble stitch step by step
Work along the row to where you would like to make your bobble stitch.
Yarn over hook, insert hook into the stitch and pull up a loop. Yarn over so you have 3 loops on your hook. Yarn over again and pull through two.
Repeat 4 or 5 times into the same stitch. Until you have 6 loops on your hook.
Yarn over and pull through all 6 loops on your hook.
In the next stitch, crochet a double crochet which will flatten the bobble stitch. Use your finger to bush the bobble out into its bobbly shape.
And there you have it, you've just crochet your first bobble stitch!