Dean-
You grab the paper that the girl gives him with her phone number, light it on fire and drop it on the floor.
Sam-
You ignore it until it gets out of hand. When it does, you grab his hand and place it on your hip, starting a small make out session in front of the other girl.
Cas-
You walk over to him and hold his hand tightly and place your head on his shoulder.
Gabriel-
You smack his butt and walk away, with your hips swaying more sexually. He comes running right away.
