Natural,Pinch,Feedback,tap,etc?
Anyway, I'll explain to you how to play a Natural harmonic in brief.
Above the frettwire (the metal thingi) , just touch the string with your fretting finger (don't frett or push hard, just a light touch), and pick, then remove your fretting finger quickly leting the harmonic note ring.
Works best on 12 , 7 ,5 ,4 , 9, 24 , 19 fretts.
So if you find X----<5>---| in a tab, this means to play the harmonic from fifth frett on the X-string.