Mine act, literally, like little chickens, running up to the front of the pen to see what I'm bringing them. I have no issues at all walking in around them, except that I'm afraid I'm going to step on one because they stay underfoot. A few times, I've had a couple get out when I was going in or out of the run and had the door open, and they just kind of sit there, pick at the mulch, and wait for me to come pick them up and put them back.
Really, they are sweet-natured little birds.
I don't have any aggression problems, either. They have a lot of room, places to hide if someone gets too aggressive. The hens have some feathers missing from the heads and necks from mating, but no one has ever been scalped as other species of quail are prone to do to each other.