Hey Tenn! So I think that what you're talking about is natural harmonics. it's very simple, all you have to do in the context of the stage acoustic solo is to place your finger lightly over the metal bar
of the top 3 strings of the 12th fret and of the 5th fret. Do not press down your fingers, all you need to do is to put your index for example on the strings over the right spot!
Let me know if this was clear