Yeah she's nervous because you're telling her to STARE into your eyes! hahaI have to keep reminding her to stare into my eyes so we can have a proper convo but either way, maybe she's doing erratic eye movement because she's nervous maybe?
I don't make a lot of eye contact when I first meet a person--especially a person who is trying to get to know me on a deeper level--because eyes are definitely the window to the soul and I don't want people to see what I'm thinking until I trust them. I would say that could be an INFJ characteristic.
If you're an ESTP who's into MBTI (so you have a brain) and she's an INFJ, sparks will fly