Final answer:
Familiarity with the signs of intoxication enables the identification of excessive alcohol consumption and potential risks, such as impaired judgment and alcohol-related crimes.
Step-by-step explanation:
The reason you must become familiar with signs of intoxication is to better determine when customers may be at risk of harm due to excessive alcohol consumption. Knowing the signs is crucial for preventing possible negative outcomes such as impaired judgment, loss of coordination, and the potential for engaging in alcohol-related crime. Symptoms of intoxication, such as slurred speech, drowsiness, and blurred vision, are the body's reactions to alcohol's effects on the brain and can indicate when a person has exceeded their limits and may require assistance or intervention to ensure their safety and the safety of others.