There is a lot of good info here. It does take rabbits a certain amount of time to get used to a new location, and a new person taking care of them. One can't really start "working" with them untill that happens. After it does, and it may take a couple of days to a month, you can instigate more interaction. I have found that many rabbits are not crazy about being carried. My most laid-back rabbit, a FL/Flemish cross loves attention, fur rubs, she will come right up looking for it and if she doesn't get it will start pushing at you with her nose (actually, it you don't respond to that she will start nipping your fingers, very gently, of course) However, she absolutely HATES to be picked up. When it is time to breed her, I make sure I have gloves on and a heavy canvass coat, and I still sometimes get scratch marks on my wrists. I have a couple of other does, that don't much like to be rubbed, but when one pics them up, they will nestle right in your arms and be calm as can be. One things that helps is to cradle them in your left arm and place your right arm in front and over the top of them with you hands over their head an eyes. This calms them for some reason, maybe they think they are secure in a den. If they start to get excited, you can sense it immediately, and be prepared so they don't jump out of your arms.
One thing, and I don't often think about it because my cages are high with doors on the front. Rabbits do not like to have hands or bodies coming down to them from the top.... I guess it is some kind of built in fear of hawks or other predators. If you can get more down to thir level, where you are reaching "out" instead of "down" it will usually help.
I have always held and played with kits that I think I might be keeping for breeders, it is a big help to make them friendlier later. Lately, I have been walking in the rabbitry when I pick them up, instead of standing still, I hope it will aclimate them to being carried later, but I haven't had enough time doing that, yet, to say it works.