I’m amazed at how much guidance to lectors is found on the internet with some simple searches.
Here’s some good points from another source:
theology.ie/lector.htm
"Some concrete techniques for public reading"“When most readers begin, they read as if they have been asked by a teacher in a lower school to fulfill a lesson: they read too quickly, without emphasis or phrasing, and without eye contact. They are often not loud enough.
Whenever we read in public, we are communicating a message with our presence, mostly in our voicing the words, but also in our body language which also should be given some attention.”
"Body Language: Eye Contact is the Start"“Eye contact is the most important part of this body language. It reflects a care for the hearers of this Word. Among other things it is a sign that we are pilgrims together in receiving it. Eye contact is made possible when the lector is thoroughly familiar with the reading and doesn’t need to see the lectionary for every word. The beginning lector has a fear, I think, that they would “take too long” if they purposively looked up now and then. Rather, by looking up now and then throughout the reading, they are making possible the necessary pacing that gives the reading meaning and enables it to be remembered.”