There were 2 long gray benches in front and groups 3&4 were the first one to play the game. Here's the mechanics: a member of the group will put her paper boat on the end of the bench and make it reach the end by blowing air out of his/her mouth. Then when it reached the end, the second member will do blow, etc. and so on.
I was on group 3. When it was my turn, my boat wouldn't budge! So I borrowed my classmate's boat and it moved well(um, well, it also fell/slid from the bench many times. ), unlike my paper boat. We won(great relief). Later on I weighed it and discovered mine is heavier than the boat of my classmate, so I told her I'd borrowed it again for the next round(winner vs. winner). So when it was almost my turn I borrowed another paper boat(not the paper boat I was supposed to borrow) and then it fell, another paper boat, then it fell again, repeat.
After I think 3-5 times of different boats falling, the paper boat I was supposed to borrow was put at the start of the bench(some of my group mates generously put paper boats on the one side of the bench when the paper boat fell) and then that was when I finished. Weird, isn't it. You don't know how nervous and shaky I was back there! EEEEEEK. I felt like I was the cause of delay, but, fortunately, we still won. Haha. :p