Activity #3 - Host a Birthday Party! Birthday parties can be imaginative when you celebrate birthdays with friends and pretend birthdays with stuffed animals!  Day 1: Write and decorate invitations. Day 2: Make ‘Happy Birthday!’ signs and decorations.  Make birthday wrapping paper and wrap tiny toys or gifts for your birthday friend.  Day 3: Birthday Party Day! Play charades and board games that use words and letters. Kids will enjoy cupcakes, frozen treats or small finger foods - it is all part of the fun!