Dolphins blow my mind.

Look at a dolphin who is looking at you and visualize a ring in front of your face traveling tward the dolphin. The dolphin will start blowing air bubble rings at you.

You won't believe me, (I wouldn't believe me) but it works.

Done this at a few zoos around the country with the underwater viewing areas. If they have their eye on you, they REALLY have their eye on you... Just remember this next time your at a zoo.