Two questions on alcohol

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A friend has had a lot to drink, and they are on the verge of collapsing or throwing up etc. I'm good at the emotional consolation staff when people are upset, but what about what I should do physically. Should they sit upon the floor, lie down,sit in a chair? Should they drink water. Should I get them to walk. Should I get them outside in the fresh air or in the warmth? Where should I be,sitting side by side with them? Secondly, If I am also drunk and I think that the atmosphere around me is aggressive, how can I accelerate sobering up to retain the role of coordinator and get people moving.