How can I play c9 chords on the guitar?

To play a C9 chord on the guitar, place your ring finger on the 3rd fret of the 5th string, your middle finger on the 2nd fret of the 4th string, your index finger on the 1st fret of the 2nd string, and leave the 1st string open. Strum all the strings except the 6th string.