Some stitch patterns ask for your full attention; moss stitch is gentler company. Its little chain spaces give the fabric a woven look, and once the first row is in place, a repeated rhythm does most of the work.
Start with a simple swatch
Choose a smooth yarn in a light or medium shade so you can see the stitches clearly, and use the hook recommended on its label. Chain an even number of stitches. For a small practice swatch, 20 chains is enough to see the texture without making the first row feel long.
The stitch guide uses single crochet (sc), chain (ch), and skip. Work with relaxed hands; pulling the chain spaces tight can make the next row harder to enter. A removable marker at the beginning of each row can help you find the turning chain.
Work the first row
Skip the first 3 chains from the hook and work 1 sc into the fourth chain. Chain 1, skip the next chain, and work 1 sc into the following chain. Repeat that chain-1, skip-1, single-crochet rhythm across the foundation chain.
At the end, you should have a row of single crochets separated by small chain spaces. If the last stitch lands one chain short, pause and recount before turning; a missed chain at the foundation is easier to fix now than several rows later.
Keep the pattern in view
Chain 2 and turn. Work 1 sc into the first chain-1 space, then repeat chain 1, skip the next sc, and work 1 sc into the next chain-1 space across the row. Finish with 1 sc in the turning chain, then repeat this same row to build the fabric.
The single crochets sit in the open spaces rather than directly on top of the stitches below, which gives moss stitch its offset texture. It works nicely for scarves and dishcloths when you want a fabric that is calm to crochet and not too dense. Make a small swatch first, since your yarn and tension will determine how soft or firm the finished fabric feels.