id say in the same way you play pinch harmonics usually
just turn up the gain and treble, and try to find a sweet spot with your picking hand
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Yea, You do pinch harmonics the same way everywhere, but try them in different places along the fretboard ( with your right hand as in more near the bridge pu or more near the neck pu)
It's really almost all about right hand positioning and finding the sweet spot but a slight vibrato with the left hand makes them stand out too and gives less of a dry tone effect.