HRs are people who "generate" happiness. They can be used to improve overall office happiness. Each HR improves office happiness by 5%. This effect can stack between HRs. ex. 10 HRs = 50% more happiness. HRs are the next employees that can be researched right after accountants it the "People" research category is selected. They require twenty manhours. HRs can be seen wearing a green shirt with black pants. They produce trash, which must be cleaned up by a janitor. HRs must be stationed at a desk. Their efficiency can be increased by upgrading to an HR Office, which also requires research in the "Rooms/Offices" section.