How to pair watchOS 7 to Xcode 13 to run app on real device ?

I'm interested in finding how to pair the real device to Xcode 13 to learn how to develop a watchOS 7 App. I click the option to build for real device and receive a system prompt to pair the device. How do I pair the the watch ?

How to pair watchOS 7 to Xcode 13 to run app on real device ?
 
 
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