The devil is in the details.

Too many variables.

Maybe it is because they are pissed-

off at the individual...

No eye-contact means not giving

away psychic information.

There are many different reasons. I avoid eye contact with toxic people and crazies.

and sometimes I'm just hanging out under my "invisibility cloak" neptune 1st house.

There could indeed be many reasons, and maybe that's the pitfall with the scorp stare or the lack of it. Try (it's hard I know) to not take it personally. People with scorp qualities are indeed like radars, and are able to pull what they want towards them with subtle body language. Stay centered.

I agree that sometimes it's as simple as being tired or distracted. Also, I am a terrible liar, even when it comes to something very simple, and so I naturally avoid eye contact then. But I don't think that is just a scorpio thing.

Yet I get very uncomfortable when I cannot make eye contact with people. Like people who wear sunglasses all of the time, even indoors? They drive me crazy. I have regular prescription glasses and I almost always put contacts in to leave the house because i just feel like i can't really communicate with panes of glass between myself and someone else.

Welcome,hexe!

I guess it could be anything.