Greeting maths was a cultural practice among the Givin people. Given their reputation for mathematical expertise, it was customary in their society to offer them an equation to solve as a form of greeting. Ideally, this equation would be somewhat intricate, allowing them to showcase their abilities. Requesting any form of approximation was considered deeply impolite, as it implied a lack of confidence in their capacity to find the precise solution. After providing the answer to the initial equation, the Givin would then reciprocate by presenting the greeter with another equation to solve. However, recognizing that many species did not share their advanced mathematical skills, the Givins developed a custom of responding to members of these species with equations that appeared complex but invariably yielded the answer three. This allowed for the observation of social conventions without causing embarrassment to the greeter, assuming the greeter was aware of the custom. Conversely, if the greeter desired to impress the Givin, they could request a further equation to solve, one genuinely intended to assess their mathematical skill.