Here are the answers for the crossword based on the clues provided:

**Across:**
3. **Card** - you give this to people on their birthday.
4. **Parade** - A public celebration on the streets.
5. **Dress** - you wear these on special occasions.
7. **Fireworks** - Explosions of colourful lights in the sky.
8. **Diyas** - people light these for Diwali.

**Down:**
1. **Card** - you send this to people on their birthday or at Christmas.
2. **Cake** - you eat this on special occasions.
6. **Party** - A celebration with food and dancing.

If you fill in the crossword based on these answers, it should work correctly!