I’d recommend reading Fr Z on this,
Reading at Mass and “eye contact.” Probably not as authoritative as your experience and your resources, but perhaps worthy of your consideration?
Here’s my view. There is a thin line between reading the Word of God in an articulate, intelligible, thoughtful way, and a performance. While Holy Mass is the greatest drama even in earthly terms, our roles are not dramatic roles.
I was an actor in a former life. I know the temptation to “play” the crowd. Keeping eye-contact, for most people, will lead them into problems, in my opinion. Unless they are quite disciplined, they will lend to their reading the overtone that that reading is about the reader and not the Word. In all our reading in Scripture, the Word is both speaking and being spoken, raised to the Father.
“Keeping eye-contact” is not something that I would push. I would push proper pronunciation of the words, the phrasing, the meaning.
And a comment that you may find interesting in case you are lector at a Papal Mass …
A seminarian in Rome recently told me of his experience as a Lector at the Papal Mass earlier this year. The Papal MC, Mgr Marini instructed him that he was not to worry about making eye contact with the congregation but to focus on the sacred text – on which he was told to meditate prayerfully beforehand. So your advice is supported at the highest level.