When talking to a stranger, how closely do you pay attention to them? If you were talking with someone for a brief moment and were then distracted by something that made you look away, would you be able to tell if that person had changed when you looked back at them? That's exactly what the two guys test out in their flirting experiment.

The pair in the video call it "Ninja Fast Person Switch Prank" and some of the reactions these guys get are pretty funny and priceless but also stay tuned to the end of the video because they have a bloopers reel too that shows them getting caught in the act!