"if you can feel the string in your fretting hand vibrate on a fretted instrument, you're doing it wrong." Generally the entire body of an acoustic guitar vibr

"if you can feel the string in your fretting hand vibrate on a fretted instrument, you're doing it wrong." Generally the entire body of an acoustic guitar vibrates with the sound of a plucked string - the fretting hand (being the only hand currently attached to the guitar) would likely feel the vibration carrying from the body, through the neck of the guitar. It's faint, but nevertheless perceivable.