Wear it like a headband
Fold into a triangle and roll into a band, then tie at the nape of the neck, this is great for a casual look, teamed with denim or a summer dress.
This look is the classic, and can be used to keep hair off the back of the neck whilst adding a chic touch to some casual outfits, pick brightly coloured prints to add some volume to otherwise plain t-shirts and tops.
Rihanna made this also work for a more dressed up affair, by matching a black bandana with the dress and cape jacket.
The Retro Pin-Up
Beyonce showed this recently as mentioned above, and it's a great combo with most summer outfits. Add volume to the fringe or the top of the hair to accentuate the piece and really add that retro feel to your hair.
This is something that can disguise a multitude of hair sins if you are having an off day! Fold into the triangle, and place at the back of the head and tie, tuck the bandana in and if wearing a quiff, then secure with pins or tuck underneath the bandana. If you want to do it loosely this will also protect curls / pinned hair from too much movement before a night out!