I need help, 10 maybe 11 yr old? Dinner Party? uhhhhh.... =/?

Ok so I'm... well my parents are having a dinner party this weekend and our neighbors are coming and ones my age he's a dude and the other is a girl, normally I just have to entertain the girl. WE ALWAYS play polly pockets or like hide N' go seek but I know she's sick of it and I am also....soo what the heck can I do to entertain her! And maybe some how get him involved too? Well normally he plays on his comp but I kinda wanna hang wit him too...besides =P he's kinda cute tee hee.