Huawei Eyewear 2 Quick Start Manual page 28

EN
You can customize what the double-tap and swipe
gestures do in the HUAWEI AI Life app, by touching
the eyewear card and then Gestures. From there
you can select voice assistant wakeup, skipping to
the previous/next track, or other operations. Actual
interface may vary.
Play/Pause: Double-tap either arm.
Answering/Ending a call:
Double-tap either arm.