You can play card games, such as uno, 樸派, 遊戲王, etc. I think I can help you.^_^
These are only my suggestion, you can play other games!!
2007-11-28 17:07:23 補充:
killer is okay. Also, you can play hide and side. If you like you can play kate. I hope you can have a good picnic.......................................................
2007-11-28 17:08:29 補充:
And learn more communicate with your classmate.
2007-11-28 17:10:55 補充:
These all my experience, if you don't like, you can play other games. BE FUN TO GO TO YOUR PICNIC!!!