Is your hair naturally wavy at all? If so let it dry naturally or even better dry it upside down with a diffuser attachment.
If going naturally comb through with a wide tooth comb, no brushing, and shake it up to get volume. Twirl lots of sections while wet into curls and then leave alone to dry.
Gets loads of curl on naturally wavy hair with minimal effort - can do it in the car on the way to work. Use some gel if you want hold and if you are going to style it curly every day you need blunt layers.