Choose yarn and a matching crochet hook
Measure the head circumference
Make a foundation chain to the desired length
Join the chain into a loop if making a circular headband
Work the first row in your chosen stitch
Continue crocheting rows or rounds until the band reaches the desired width
Keep the tension even throughout
Try the headband on as you work for fit
Fasten off the yarn when finished
Weave in all loose ends
Add a button, flower, or other embellishment if desired