Your putting feels really good when you have that connection between your hands, your arms and your shoulders. Any easy way to forge that connection is to put your hands together as if you were praying and put them on either side of the club.
You’ll want your thumbs touching and your index fingers on either side of the grip. This doesn’t give you a very tight grip on the putter, which is great because it forces you to use those bigger muscles. This will help you to feel that good connection between your hands, arms and shoulders, and if you like it enough, you can even hit a few putts using the prayer hands.