Away from the airport by maglev, subway, even bike, or ferry, to the waterfront, streets, temples, museums, markets, and parks. Be guided to enjoy a dynamic day, or just lay flat in one of the places.

A usual itinerary:
1) Airport Terminal -> Shanghai Ship Build Exhibition -> Maglev -> Subway -> Downtown, in 40 minutes
2) Exploring the architecture along the waterfront, strolling, and using bicycle and ferry
3) Visiting 1 museum and 1 temple of the following: Shanghai Museum, Shanghai Jewish Refugee Museum, Power Station of Art, Shanghai Urban Planning Museum, Jade Temple, Yu Garden
4) Window shopping for Shanghai goodies: Textile market, Shanghai Watch, Feiyue sneakers
5) Tea and snack breaks in between

Option 2:
Lay flat, relax in one of the places, even on a boat on the lake, till the call of the next flight