In order to do a bubble stitch in crochet, you will need to start by creating a foundation chain. Once you have your foundation chain, you will then single crochet into the second chain from the hook. You will continue working your way down the foundation chain, single crocheting into each chain until you reach the end. When you reach the end of the foundation chain, you will turn your work and begin working back up the other side of the chains. To create the bubble stitch pattern, you will need to double crochet into the first two chains on either side of your work. Once you have done that, skip a stitch and then single crochet into the next stitch. Continue working this pattern until you reach the end of your row. When you reach the last stitch on your row, simply slip stitch into it and turn your work so that you can begin working on another row.