There is nothing supernatural about it, but I have seen it happen over and over. Football fans share a universal language that cuts across many cultures and many personality types. A serious football fan is never alone. We are legion, and Football is often the only thing we have in common. We recognize each other instantly, even if we have to speak in sign language. No doubt it has something to do with the gambling instinct, which is also universal.
The next time you find yourself in need of conversation in some backwoods foreign airport, as I have from time to time, take this tip and look around for the nearest public TV set that is tuned to a football game. That will be your oasis, no matter how long your layover may. You will get your questions answered.