Here's a fun fact: When thinking about numbers, our minds imagine smaller numbers to the left and larger numbers to the right. According to studies conducted at the University Rotterdam in the Netherlands, manipulating your body's tilt influences how you estimate quantities. The study noted that even when you're unaware of your body's angle, you estimate smaller when leaning left and higher when leaning right. And it goes beyond numbers -- the participants that leaned right during the study over-estimated the height of the Eifel Tower, percentage of alcohol in whiskey, among other quantities.
How to avoid a big oops: Be aware of your posture when estimating, like how big of a house you need or how many hors d'oeuvres you need for your wedding. One harmless lean to the left could make a difference -- and a hungry crowd.