For me, with eye contact, I always look right into someone's eyes if I'm talking directly to them. It's difficult but it helps me gain confidence and control in the conversation. I definitely feel a little uncomfortable if I'm talking to someone who also is trying to hold my gaze though (particularly other girls because I feel intimidated and not as good as them), and I usually let them win, so to speak, by looking away now and then. Particularly with one of my roommates-- I can never go long looking her in the eye because I know that she will not look away at all through the whole conversation and that is very disconcerting. So generally I am only comfortable looking someone in the eyes if they aren't intent on looking back the whole conv.