How can one identify the common or pivot terminal on a three-way switch?

The common or pivot terminal on a three-way switch can usually be identified because it is typically alone and a different color compared to the other terminals. This distinctive feature helps to easily differentiate it from the traveler terminals, which are often of the same color or size and typically come in pairs. The unique color and isolated position indicate its function in completing the circuit when connected appropriately. This visual cue is essential for ensuring correct wiring and functionality in three-way switch configurations, which are commonly used to control lighting from two different locations.