Your Thumb: Your thumb is nearest you. So begin your prayers by praying for those closest to you. They are easiest to remember. To pray for our loved ones is, as C.S. Lewis once said, a "Sweet Duty."
The Pointing Finger: Is next to your thumb. Pray for those who teach, instruct and heal. This includes teachers, doctors and ministers. They need support and wisdom in pointing others in the right direction. Keep them in your prayers.
Your tallest finger: It reminds us of our leaders. Pray for the president, leaders in business and industry, and administrators. These people shape our nation and guide public opinion. They need God's guidance.
The Ring Finger: The fourth finger is our ring finger. Surprising to many is the fact that this is our weakest finger, as any piano teacher will testify. It should remind us to pray for those who are weak, in trouble or in pain. They need our prayers day and night. You cannot pray too much for them.
Our little finger: The smallest finger of all which is where we should place ourselves in relation to God and others. As the Bible says, "The least shall be the greatest among you." Your pinkie should remind you to pray for yourself. By the time you have prayers for the other four groups, your own needs will be put into proper perspective and you will be able to pray for yourself more effective.
Maybe this is something we can teach our children, albeit blood children, adopted children or children we teach at church or around our community...