Start by holding the club directly in front of you with your right hand with the club head pointing away from you at about a 45 degree angle.

Next grip the club with your left hand. The club will be mainly in the palm across the pads at the base of the fingers. however, the club will lie across the first section of the index finger. The thumb will be positioned straight on top of the golf club shaft. Relative to the golf club, the thumb will be in a the twelve o’clock position.

Now, with your right hand, grip the golf club just above your left hand with the fingers, not the palm, of your right hand. The thumb will be positioned slightly off to the left. Relative to the golf club, the thumb will be in a eleven o’clock position.

If you have gripped the golf club correctly, only the first two knuckles of your left hand will be visible. Also, your left thumb should be completely hidden under your right hand.
The index finger position of the right hand will look and feel like a gun trigger finger.