We can pray right now for someone we know who is in need. There are more frequent opportunities for prayer than for the Corporal Works of Mercy. Everyone needs prayer. Everyone needs to be prayed for. It's consoling to people when they know them we are praying for them.
People love to be prayed for.
They are encouraged just hearing that someone is praying for them. They are touched to know that they are loved and cared for by their friend who is praying for them. Non-Catholics love to be prayed for, too. There are many opportunities for intercessry prayer. We can show compassion for those in difficult situations as seen while driving - a policeman directing traffic, a car accident, prisons, hospitals, funeral homes, etc.