Proper hand movement when tuning your guitar

TIP: When you tune in the normal way, you use your left hand to turn the tuning peg. But after you remove your finger from the string that you’re fretting, it stops ringing; therefore, you can no longer hear the string you’re trying to tune to (the fretted string) as you adjust the open string. However, there’s a way to tune the open string while keeping your left-hand finger on the fretted string. Simply use your right hand! After you strike the two strings in succession (the fretted string and the open string), take your right hand and reach over your left hand (which remains stationary as you fret the string) and turn the tuning peg of the appropriate string until both strings sound exactly the same.