In nature, only a predator would eye them so directly. Slow movements of head and body are best around them. They will note your behavior and come to trust you and your routines after you prove non-threatening. If you have to move close to them, talk softly and keep your eyes averted, or even better, pretend that you don't see them at all. This comforts them and reaffirms their trust in you as a non-predator.
Peafowl love green plants.
Be sure to get them fresh tender grasses, maybe bringing in chunks of sod if the pen becomes grassless. They also love to lay on the ground in our wildflower beds or in the high grasses. Remember that their native habitat is jungle edge, and their coloring keeps them well-blended with the shadows and lights found in such a place. So they get low out of the wind to take in some sun and stretch out their legs on cool days. It's very easy to miss them when they do this.