With AssistiveTouch in watchOS 8, you can use your Apple Watch with one-handed gestures if you have difficulty touching the screen or pressing the buttons. By pinching your fingers and clenching your fist, you can answer calls, use your apps, and launch a menu of actions on Apple Watch SE, Apple Watch Series 6, and later.

To learn more about this topic visit the following articles:
Use AssistiveTouch on your Apple Watch: https://apple.co/3lnLH8P
Use AssistiveTouch on Apple Watch: https://apple.co/2ZKxs04

Additional Resources:
Contact Apple Support for Apple Watch: http://apple.co/AppleWatch
To subscribe to this channel: https://www.youtube.com/c/AppleSupport
To download the Apple Support app: http://apple.co/2hFtzIv
Apple Support on Twitter: https://twitter.com/AppleSupport

For more videos, go to Youtube Apple Channel