As you pray for people, bless them.  If they are always angry, bless them with peace.  If they suffer from depression, bless them with joy.  If they have a heart of stone, bless them with a heart of flesh.  Bless them with a thirst for God’s Word.  Ask God to show you what they need and pray God’s blessings.  Praying blessings is an effective form of spiritual warfare.