What is a critical observation for servers when assessing customer intoxication?

Assessing customer intoxication is essential for servers to ensure the safety of patrons and compliance with legal responsibilities. Visible intoxication is a key indicator because it encompasses a variety of observable signs such as slurred speech, unsteady movements, and difficulty in performing simple tasks. When a server notices these physical signs, it becomes clearer that a customer may be over the legal limit for consumption, making it critical for the server to act appropriately, which may include stopping alcohol service or monitoring the situation more closely.

While other factors like behavioral change, a customer's age, and the volume of alcohol consumed can contribute to the overall assessment, visible signs present the most immediate and tangible evidence of intoxication. Recognizing these signs allows servers to make informed decisions swiftly, reinforcing their role in promoting responsible alcohol service and maintaining a safe environment in their establishment.