Place the 2nd finger behind the 2nd fret on the third string. Keep the thumb behind the guitar, on the neck, under your second finger, keeping your fingers as much in a circle as possible. Press the string behind the 2nd fret until you feel the fingerboard under your fingertip. Make sure the first joint of your second finger remains curved and make sure your fingertip is right behind the fret, not in-between the first and second fret. Pick the note - it should sound something like this:




Practice it a few times to get used to the sound. Be careful not to press too hard. Only press the string hard enough to sound the note.