Birthday surprises are special events or gifts planned to celebrate someone's birthday in an unexpected way. These surprises can include surprise parties, unexpected guests, or unique gifts that the birthday person did not anticipate. The goal is to create joy and excitement, making the day memorable. Common elements of birthday surprises often involve friends and family working together to keep the plans secret. Decorations, cakes, and themed activities may be included to enhance the celebration. Popular ideas for surprises include balloons, streamers, and birthday cards that add to the festive atmosphere.