human
I want to plan a surprise birthday party for my friend. What are some unique ideas?
assistant
Some unique ideas to surprise your friend on their birthday include: 
1. Organizing a scavenger hunt around their home or favorite places in the city
2. Arranging an outdoor movie night and picnic in a local park
3. Setting up a mystery dinner with clues at each course
4. Creating a personalized time capsule with memories from the past year
5. Planning a game night with board games and their friends
6. Bringing in a live painting event with a local artist
7. Hosting a spa day for friends and family in your backyard
8. Decorating their house with as many balloons as possible
9. Arranging a surprise trip to a nearby destination
10. Planning a virtual birthday party with friends from around the world