well, if I'm conversating with a guy and I'm not looking into his eyes its because he just so cute and hot and every time I do look at him its like electric emotion that's great don't get me wrong but it can make me feel nervous in a good way...so I may avoid eye contact..
she may just like you, but is shy. This happens to me with guys I really like. Is she likes this with just you, or other guys too... If it's just you, she's definitely into you, or is at the least made nervous by you.
normally, when I'm talking to a really cute guy.. I can't look at him. I don't know why. I guess it's because if I do, I'll end up messing up what I'm saying, & I don't know it's awkward when I'm talking and just looking at his eyes, haha I really don't know.
Sometimes I do it subconsciously. It's just part of my mannerisms when I'm joking around or something lol. Otherwise, I only do it when the conversation gets uncomfortable -- like if it's really personal.
well I personally don't like full on eye contact. when someone does that to me I get uncomfortable. But also I get shy, so I feel that I need to look around when I'm talking, because I'll soon become nervous and lose all train of thought.
usually, if I don't keep eye contact with a guy I'm interested in, its because I start getting shy and don't want to say something dumb if because I'm distracted by him. or sometimes, I get a little insecure because I feel like he's just staring at me and its so much easier to judge me that way lol if that makes any sense