How to get to know a group of new freshmen?

I'm doing this thing at my high school where I have to help introduce new freshmen to the school and their new homerooms. I need some good ice breakers to get everyone used to the new school and being with bunch of kids they don't even know. What ae some good games or little things i can do to get vryone feeling comfortable in the school that an also get everyone to get to know eachother?