Racing for the Open Aisle at the Grocery Store
You are walking toward an open checkout lane when you spy another person coming the other way with items in their hand. You aren’t exactly sure if they are heading to checkout, but you don’t want to take any chance they get there first. So you quicken your step, but try to cover it by casually glancing at nearby displays. When you get there first, keep acting casual by thumbing the magazines or looking over the gum selection.