Scenario: You are hosting a small, casual gathering at your house. Your (wooden) front door looks out onto your driveway. You also have a screened / flywire door. When the front door is open, you have a clear view of any cars that pull up (and the occupants of those cars have a clear view of you standing behind the screened door).
In this case, the front door is open, giving you a clear view of the driveway. You happen to be in the front hallway (inside the house), when you see your guests pulling into the driveway, right on time. You stand and watch, from behind the screen door, as they get out of the car.
What should you do next? (see poll options).