A "glance" refers to a quick or brief look at something. It often involves a fleeting observation, where the viewer does not focus for long. People might glance at a clock to check the time or at a book cover to see its title. This action is usually spontaneous and requires minimal effort. In everyday life, glancing can help individuals gather information quickly without deep analysis. For example, a driver might glance at the rearview mirror to check for other vehicles. This ability to take in visual information rapidly is useful in many situations, such as during sports or while navigating busy environments.