It's possible that if you're reading this, you're past the point where you care if someone is looking at you because they are attracted to you. But even if you don't care, it's possible that it could explain some behavior or may be useful information for you to have at some point in the future.
Normally in a large meeting it might be hard to tell if someone is looking at you. But these students have a theory that if you yawn, and they are staring at you, they will yawn too. It's based on the idea that yawning is contagious and if their concentration is on you, they probably will yawn too.
The students claim that they've tried it and it worked!
Photo credit: GaudiLab iStock