(The gang decides Penny needs to get into a sexual relationship. Sheldon sees a nerdy looking guy sitting near him)
Sheldon: Excuse me, are you currently involved in a sexual relationship?
Sheldon: Would you like to be?
Guy: Uh... sure, why not?
Sheldon: (to Leonard) Hup up up... (to guy) Can I have your phone number?
Guy: (eyes Sheldon's body closely) Uh... yeah! (grabs Sheldon's hand and writes down his phone number)
Sheldon: There, problem solved!