chickens don't really get the concept of friendship, they are mostly in it for the food, the safety, and familiarity.
but, to get chickens to come to you,
- try to always remember to move slowly and calmly whenever possible
- treats, treats, more treats (these can be healthy treats)
= spend as much time with them as you can, even if you are paying your bills while you sit in the run, or talking on your cell, or reading a book, etc.
- when you are going to spend time with them, stick a couple of treats in your pocket. reward those that come check you out.
- once they start hanging out with you, they will still take off to check out a bug, wander around, chase something, graze, etc. don't take it personally!
- get them used to handling - dusk in the coop is a great time to do this. You can use this time to check their feet, their eyes, vent, etc - again moving slowly.
chickens I haven't personally raised from day old chicks have been less likely to have any interest in interacting with me
have fun and enjoy watching them