Happiness is a factor in customers. Whenever a customer walks in, their Happiness will be different depending on what kind of customer they are or what Improvements you have. Happiness can change while haggling in one of two ways; low-balling a customer or giving a customer Candy.
Levels of HappinessEdit
Other than Assassin Wei, it's rare to see a customer with an Angry level.
Most (or some) of the customers walk in with a Content level.
It is really rare for a customer to walk in with a very happy status, but it's common for a High Roller.
Only High Rollers can walk in the store with a overjoyed happiness. Also, when a friend visits a pawn shop and clicks on a customer, they will become Overjoyed.