Which of the following is considered an effective way to identify intoxication in a guest?

Recognizing changes in behavior is an effective way to identify intoxication in a guest because alcohol consumption can significantly alter a person's demeanor, actions, and interactions with others. When a person is intoxicated, they may display a range of behavioral changes such as increased impulsivity, decreased inhibition, or altered social interactions. This includes becoming overly friendly, aggressive, withdrawn, or exhibiting poor judgment. Monitoring these behavioral cues can provide valuable insights into a guest's level of intoxication and, thereby, help in making informed decisions about their service and safety.

Observing speech clarity, while informative, may not be as reliable by itself since some individuals may speak clearly even when intoxicated, or they might have speech issues unrelated to alcohol. Checking their pulse provides physiological information that doesn't directly indicate intoxication levels and could lead to inaccurate conclusions. Asking a guest their age also does not contribute to understanding their intoxication level, as age alone does not correlate with the effects of alcohol. Recognizing behavioral changes offers a more direct and practical way to assess intoxication.