How to pronounce“stimming”in English

“If you think about it, most of us, from time to time, do typical or what we might call “normal” stimming-type behaviors like drumming our fingers on a desk; wiggling or tapping a pencil; pacing back and forth; bouncing a knee up and down; twirling a lock of hair; or even humming. The difference between “normal” stimming and autistic stimming, is how often it occurs and what kind of stim activity is chosen.”