we are staying at Royal Meridien Shanghai and would like to take the Maglev train to Pudong Airport.

At pudong airport, you can easily follow the direction boards to find the maglev. Then you can take the maglev to reach the Longyang Road Station. At this station, you can change to take the local subway line 2 to reach People's Square Station. Get out of the station from Exit 19, you can easily find the hotel.