When your this guy. Though the Apple Watch is a poor choice for conducting phone calls, it can be useful for declining them -- though perhaps not in the way you might expect.rings when a call arrives, you certainly don't want to look like
The Apple Watch appears to offer two options for an incoming call: A red button to decline the call and a green button to accept the call. Declining a call sends it straight to voicemail, a swift rejection that could insult or dismay your caller. There is, however, a hidden third option that lets you politely sidestep incoming calls, with hopefully no hurt feelings.
When your Apple Watch rings, simply place your hand over the watch. This mutes the ringing but doesn't send the call directly to voicemail. Your voicemail will only pick up after the appropriate number of rings, indicating that you missed the call rather than forcefully rejecting it.
(Similarly, you can politely decline a call on an iPhone by pressing the power button or either volume button, muting the ringing without sending the call straight to voicemail.)
Although this tip is useful, my favorite Apple Watch feature remains its ability to ping a misplaced iPhone.
(Via OS X Daily)