Choose a soft, medium-weight yarn
Choose a crochet hook that matches the yarn label
Make a slip knot
Chain the width you want for the scarf
Turn your work
Work one stitch into each chain across the row
Keep the same stitch for every row
Chain one at the end of each row if needed for your stitch
Turn your work after each row
Repeat rows until the scarf is the length you want
Cut the yarn, leaving a tail
Pull the tail through the last loop to fasten off
Weave in the loose ends with a yarn needle
Block the scarf if needed to help it lay flat