No one claims to have created this day, it doesn’t appear in history to have any special meaning and absolutely no one knows what one does to celebrate it. So this day is wide open for whatever you want it to mean and then to celebrate it is any way you wish to. You can’t really be wrong. Well I guess there is one restriction… it has to concern the ear somehow. If one takes it literally maybe it means to listen but since it doesn’t say that it could also mean an ear of corn.
How to celebrate – Figure out your own meaning. Get a hearing test. Have some corn.