Do you hear what I hear...

Here's a neat exercise to develop your hearing.

Try listening to the radio while the TV is on but with no sound.
Keep your eyes on the TV and allow your eyes and ears to work independently.
If this is too easy then start to turn the soudn up on the TV. Can you still listen to the radio while watching the TV?
Practice when your out in public seeing if you can focus your hearing on different sources of sound independently of your eyes. See if you can control the focus of your hearing. For some a good trick is to try listening for the silence, this will heighten all sounds and help your conscious brain identify them and their source.

You may find it difficult at first, but eventually you will break through and find you experience a new and much deeper use of your hearing.