Name a guest to one of the names listed below for the desired effect:

Chris Sawyer            Photographer guest
Simon Foster            Artist guest
Katie Brayshaw          Waving guests
Tony Day                Hungry guest
John Wardley            "Wow!" thinking
John Mace               Guest pays double entrance fee
Damon Hill              Faster Go-Karts
Michael Schumacher      Even faster Go-Karts
Mr Bean                 Slower Go-Karts

Increase guest happiness:
     Enter  Melanie  Warn as a guest name. You can rename the guest to
another name and repeat this on another guest as needed.
Keep doing this to also increase your park's rating.

Multiple names:
     You can have more than one person with the same name (which works
well  when using the cheats) by changing the capitalization of various
letters.
     For  example Chris Sawyer can be used on another person by making
all letters lower or upper case (chris sawyer and CHRIS SAWYER).

Guests never leave:
     Put  a  "No  Entry"  sign  by  the entrance, facing away from the
entrance. Guests can still come in, but will not leave. Note: This may
cause your park rating to decrease, because many guests will be "lost"
and want to go home.

Extra building space:
     Build  a  ride or attraction such as a maze. You can now build on
top of that with smaller rides (for example, bumper cars).