"What's the Reservoir test?"
"All right listen to me. You tell her you're going to Reservoir to pick up booze, right. Before you go, you dilly-dally around her dorm, waiting for her to offer 5, maybe 10 bucks to chip in. You open the door, you turn back to face her on your way out, and if she doesn't take out her wallet and give you cash, you dump her."
"Just like that?"
"Listen to me kid, if she doesn't reach over and take out that cash so you can buy more booze, that means she's a selfish broad, and all you seen is the tip of the iceberg. You dump her and you dump her fast."