You play them to people.

If they're good, people will want to play them themselves.

If they're really good, someone might want to record one.

If they're exceptionally good, several people might want to record different ones.

You'll start making a name for yourself as a good songwriter.

Why not put up some mp3s of your songs on the net?

You've copyrighted them, so no one can steal them.

You won't sell anything unless you shine your own light.

It's likely to be a long haul, whatever you decide

Paul