something stupid!!

Yesterday, Mamika and I went to the bus stop to take the bus, N16, after school. It was about 4:50 pm. At the bus stop, there were many students including our classmates wating for their buses. It was strong wind and very cold. While Mamika talked to her Japanese friend, I was talking with William about our dream and future. After about 20 mins, William asked us why we didn't take our bus, N16. When Mamika and I looked around the bus stop, we relized that we missed the bus because some students who take N16 disappeared. So we had to wait for our bus until 5:30pm. After William left, there were only Mamika and I and one student at the bus stop. We were very clumsy. We wondered how we din't see the bus arrive and students take the bus... Maybe we concentrated on our conversation..