It's shameful to say, but find the one with the lowest self-esteem, the one that hates herself the most. To find this girl, look among the most overweight, least attractive ones, they're of course the easiest (barring the overly-jaded ones). Alcohol helps in all cases, and dress like an unassuming nice guy, not a sleezeball-pimp type. Then, just hook up, collect the winnings, and rip her heart out. You won't score any points for beauty, but you will walk away with the pot. Play it off as being goal-oriented.
Hah, sorry but I'm not gonna do that. I want this evening to be fun for me too you know
But then again it will be fun later with my friends when we will remember how I did it...but no I think I'm not gonna do that
Actually an I idea of telling the girl about a bet never came into my mind. That sounds like a good plan, because I'm pretty sure that none of my friends are going to tell those girls about the bet. They are gonna take some time to talk to them. Hah it would be fun if I could win the money in the firs 2 minutes
Then the whole evening fun will be ruined for them...
Any other interesting ideas ? If not I'm deffinatley gonna go with "get drunk then go and tell some girl about a bet on a beer" idea