Patient People is a boost that makes your customers visiting the restaurant more patient. This boost calms down hangry customers and works wonders on your more grumpy patrons, like Maddie or Kingston. 
To use the boost in a level, simply purchase it by clicking on the icon on the level intro page.  
 
Each level will have 3 boosts available to be purchased and used in that level.  Boosts will automatically activate when the level starts and will last for the duration of the level!