Accompany Mimi to the bar

This could be a golden chance. Mimi is already a little tipsy, and she's shown that she's interested physically in you (when you play your cards right). But this is a moment where you need to separate yourself from the boys.

At the beer pong table, you had Mimi in a 1-1 situation. At the bar during a sorority-fraternity mixer, you're going to have to deal with competition from the frat guys AND Mimi's sorority sisters...

Your two opponents from the beer pong game agree to make Mimi a drink and, after some cajoling, get you a beer, too. That'll help because it looks like only the skinny black-haired girl from earlier is manning the bar, and there's a gaggle of frat and sorority co-eds waiting to get drinks.

The dudes are largely waiting behind the Delta Delta girls, who've pushed to the front of the bar. They make way for Mimi, but don't look eager when you try to get to the front of the line, too.