Final answer:
When encountering an intoxicated person who is unconscious at a party, immediately check for responsiveness and vital signs, place them in the recovery position, stay with them, and call for medical assistance.
Step-by-step explanation:
If you're at a party and an intoxicated person goes to sleep or loses consciousness, the first thing you should do is check to see if they are responsive. Gently try to awake them by calling their name or lightly tapping their shoulder. If they do not respond, check their breathing and pulse. If they are breathing and have a pulse but are not waking up, place them in the recovery position to keep their airway clear and prevent choking in case they vomit. Always stay with them and call for medical help immediately. Additionally, monitor their condition closely while waiting for emergency medical services to arrive. It's important not to leave an intoxicated person alone as their condition can worsen quickly.