We're not saying that when it finally happens it'll happen to you. But on the other hand, it might. You COULD be the person who gets to make first contact with aliens. Don't you want to make sure you don't screw it up?
We found this ingenious infographic over on imgur. It explains just how to handle yourself in the event that the aliens knock on your door.
Click on the image below to view it at full size ... and be careful.