<p>There are plenty of good resources online on how to deal with a drunk person.</p>
<p>The idea is:
1.) If they’re conscious, just make sure they don’t do anything stupid or hurt themselves.
2.) If they’re sleeping it off, make sure they’re on their side and have a regular pulse.
3.) If they’re vomiting, having irregular pulse, etc., it’s time to summon medical help.</p>
<p>The effects will wear out. Also, get a good sense of how much alcohol that person had. If it’s an unreasonable amount (eg. 15 beers in 2hr for a 150lb person), then lean towards the medical help part.</p>