The easiest way to achieve a harmonic is to lightly place your first finger over all of the strings just before the 12th fret and lightly strum all the strings and immiediately after remove your finger.
If fingered lightly enough and in the right spot the sweet bell like tones of the harmonic will sound. These notes are one octave above the open string.
If you are playing electric, switch to your bridge pickup, so the harmonics will stand out better. Now try the same thing directly over the 7th and 5th fret wire. When doing these harmonics on upper frets add some natural distortion to avoid dying out.
Another way of achieving a pinced harmonic to play a not with a pick and as sone a the string is struck follow the pick with your thumb directly behind the pick. This type of harmonic is harder to achieve again use you bridge pickup to accent it. It will take practice to a achieved a perfect pinched harmonic, but is more affective than the previous .
