Doesn't have to be all that "standard". It'll guess just about anything you draw & give options that it could be.If whatever texting app you are using on your phone supports Reply from the watch....when you get a new text tap the Reply Via SMS option then scroll down just a little and select Draw Emoji. Draw any standard Emoji (smiley face, thumbs up hand, etc) and the watch will show options it thinks you drew and then tap the one you want to send.
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