1、 Identity card
Not only Shanghai expo, but also take flight or get an accommodation, you will need your identity card. So bring it with you is very important once you travel.
2、 Flat shoes
As you know, the shanghai expo park is very big and there are 154 pavilions. If you want to see more pavilions, means you have to go a long way. At that moment, a flat shoe is useful.
If you go to shanghai expo in July or August, I think you `d better carry an umbrella. As there will be always raining in shanghai,you can keep out the sunshine if there's no rain,it's also a good idea.
4、 Travel app
When you go to the shanghai expo, you will find a lot of free paper map for you everywhere. If you think it is Troublesome to keep a paper map.You can download a shanghai travel app in your phone, I use one called ”xTown Shanghai” for iphone. It contains not only the shanghai expo information, but also shanghai top 10 attraction, traffic, nightlife and so on.
Before you go to shanghai, you`d better keep one's powder dry you will be queued for a long time, especially when you visit the popular pavilions. So carry a small bench is quite useful.