Quote:
in a focused one on one face to face conversation, look at them half the time, let your eyes wander the other half.
In most situations, far less to no eye contact with each person would make more sense.
Sounds about right

I'll try that
EDIT: I found this in a book, maybe it'll be helpful to you all
• Eye contact is hard to get right because it is hard to tell whether you are giving someone too much eye contact or too little when they are talking to you.
• While people are not talking and when you are not talking to them, it is often best not to look at them. This is because people can usually see that you are looking at them out of the corner of their eyes and this may make them feel uncomfortable, in which case they might talk about you behind your back.
• To control your gaze might be difficult for you but it is by no means impossible.
• Also, pointing at people can make them suspicious and should be avoided or at least done very discreetly.
• When you are talking to someone or they are talking to you, you are expected to look at them, bearing in mind the following guidelines:
• To look at someone for less than one third of the time may be communicating that either you are shy (if you keep looking down) or you are dishonest (if you keep looking to the side).
• To look at someone for more than two thirds of the time may be communicating that either you like them (if you are looking at the face as a whole) or you are aggressive (if you are looking straight into their eyes).
• To look at someone for the whole time, giving steady and unbroken eye contact, can mean one of two things. Either you are challenging them (the aggressive gaze) or you fancy them (the intimate gaze). However, in other cultures (e.g. Mediterranean Europe), it can also symbolise companionship. For someone with autism it can be very difficult because first, we have to be sure that it IS appropriate. Also, fixed eye-contact can forcefully distract us when we try to talk.