My 2008 had two different types of sounds, here is what I did:
1) Spray the arm of the clutch pedal with WD-40. This stopped mine from making noises (besides the 100% normal high pitched click sound). This sound happened almost every time I used the clutch.
2) I did eventually have a problem where the clutch slave cylinder had to be replaced as it made "vrrrrr" sound. This did not happen every time but often.