So, if you see people thinking 'I'm not paying that much to go on/buy ,' decrease the price at the attraction immediately.

Guests don't like things that are too expensive.

Sometimes it is not easy to keep the guests happy, but if you follow these tips you will have an idea on how to manipulate your guests' happiness. If a guest's happiness level is low enough, he will turn into a vandal and break benches and lamps in your park, which in turn will affect other guests' happiness level. There are numerous things that make guests happier, while certain other things cause their happiness levels to decrease. This will boost guest's happiness and energy to maximum.

If a guest's happiness is desperately low, you can rename him/her to Melanie Warn.

Nausea level is also decreased when the guest sits down or drinks a drink. Usually vomiting decreases the guest's nausea level. If the nausea level is too high, the guest will throw up. Nausea is also increased (a tiny bit) by eating food.

Guests' nausea mostly increases when he/she rides a ride that has a high nausea rating.

Guests' bathroom level increases when he/she drinks a drink or eats.

It will also be a good idea to place bathrooms all over the park.

The best places to put drink stalls are near a food stall and near the exit of a nauseating ride. After drinking a drink, usually the guest's thirst level and nausea level decrease while the bathroom level increases. The thirst level also increases with the nausea level.

Guests' thirst increases mostly when he/she eats food.Since eating food also increases nausea level, place the food stalls away from nauseating rides.

Here are some things that might cause one of those things to increase/decrease:

Hunger, thirst, their need to use the bathroom, and nausea also affect the guests' happiness.

Some may leave the line if they wait too long. When guests think 'I've been standing in line for for ages' their happiness drops. Also put entertainers in the queue lines, because after waiting a long time in line, guests get angry. Place entertainers near the front gate to dissuade leaving guests from exiting. Whenever a guest passes an entertainer, his/her happiness level increases. This is much quicker than hiring many more janitors/handymen.

If you have lots of money and your park is really disgusting and dirty, you may consider deleting all the dirty paths and placing new ones down.

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