They eat cake with friends and family. They also give the person who's birthday it is presents.
July 4th ...
America celebrates its birthday in July.
July ... the 4th day.
the fourth of july
America's First Latino Sextuplet Celebrate 2nd Birthday
How to Throw a Kid's Circus Birthday Party: Party Favors
How to Throw a Kid's Circus Birthday Party: Invitations
How to Throw a Kid's Circus Birthday Party: Fun and Games