@Redice wow, are you just for real saying that another cliche, specially made to exaggerate characters' emotions, is real?
you won't feel a thing when someone is staring at you from afar behind your back. you need to see a person to be able to try to "read" him/her. and even so, it's not an aura it's just his emotions that are shown to your eyes and your brain is warning you about that.
so, do you also believe that a reason behind your hiccupping or your sneezing is that someone talking about you at that moment?