Which technique is part of the S.I.R method used for assessing intoxication?

The technique that involves interviewing the guest is a crucial part of the S.I.R method for assessing intoxication. During this process, the hostess or staff member engages the guest in conversation to gauge their state of inebriation. Asking questions about how they're feeling, their alcohol consumption, and even general well-being allows staff to observe not only their responses but also their behavior and communication skills.

This method is effective because it provides insights into the guest's level of intoxication through verbal and non-verbal cues. For instance, slurred speech, difficulty concentrating, or confusion during the interview can indicate higher levels of intoxication. It's an essential technique for maintaining the safety and wellbeing of guests, as it helps staff make informed decisions regarding service and potentially intervening if someone is approaching dangerous levels of intoxication.

The other options, while relevant in a broader context of guest safety or compliance with alcohol laws, do not directly contribute to the assessment of a guest's current level of intoxication in the same personal and observational way as interviewing does.