Push the palms as the index fingers release
From pre-impact, maintain pressure down, out, and away with the palms while both index fingers point down. As the hands move to post-impact, the fingers return parallel to the palms; if the fingers remain outside the palms, the clubhead also remains outside the handle.
Channel: stayhandsy
Watch official source at 6:23Why this context matters
The coaches describe the hand action without requiring a full swing.