It is your birthday . What do you do ? Why of course you go out of the house, stroll down the way a few hundred meters, stand behind bullet-proof glass with your family , and give  short speaches and wave   to  the thousands of people who have  come  from all across the nation to wish you a most happy birthday.  You will wave and give speaches for about 5 hours.  The emperor of Japan Akihito has been doing this for  21 years  now !