One possible version:

Dear classmates, it’s a great pleasure for me to be here today and talk about what we should pay attention to when we visit the Shanghai Expo.

First, we’d better make a plan and decide on the pavilions we want to visit, which is very useful to save time. Next, we should read the rules of security check carefully. Never bring forbidden items so we can get through the check quicker. Another practical way is that we can make reservations before we go to the next pavilion, which can be done on the machines provided in the Expo Site. In this way, we may avoid extreme long queuing. During the visit, do remember to bring the map so that we won’t lose our way or visit the same place again and again.

Meanwhile, we ought to obey the rules of the site and be aware of our duty to protect those cultural heritages. And we should also pay attention to our personal manners. Such ugly behaviors as pushing or squeezing together, spitting and so on should be determinedly forbidden. In a sense, each of us will not simply stand for ourselves but stand for China.

Thank you for listening.