Just be calm and move slowly around them and they will soon get used to you, well the one who brings them food and water anyway.
What they do go bonkers for is maggots get a quarter pint from your local fishing tackle shop every so often (whites please) you can keep them in a feeding dish the first few times, then you can start to scatter a few around the enclosure for them to root out.
Environment enrichment (so the zoos call it) keeps them and you entertained for hrs.
Night before last the wife lost one of her chickens. Overnight locked up in their henhouse as usual, it has a slatted base so the poop falls though and is on wheels. Slats are only 1" apart. Fox managed to pull the poor birds feet off. Why it wasn't on the perch gawd knows. Nasty death.