Bring your yarn over the hook from back to front before placing the hook in the stitch. Now insert your hook in the third chain - without counting the loop on the hook (1). Wrap the yarn over the hook and draw the yarn through the chain stitch. You now have three loops on the hook (2). Wrap the yarn over the hook again and pull it through all three loops on the hook (3). You have completed your first half double crochet. To continue bring your yarn over the hook and insert it in the next chain stitch (4). To start a second row, bring your thread to the correct height by making two chain stitches.
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