I guess the party is over now, so I can give my irresponsible advice freely
1) working out hard before hand can make you get drunk easier
2) drink on an empty stomach
3) fizzy alcohol is absorbed quicker
4) drink through a straw, it gets absorbed through the roof of your mouth
this should enable you to get drunk on a minimum of alcohol. I'm not 100% sure of 3 and 4 but they sound very plausible.