hermit crabs are not like cats and dogs when it comes to humans. Dogs and cats seem to enjoy and crave human companionship, hermit crabs don’t. You may find that some crabs warm up to you right away and others never do. There isn’t a sure fire answer to this. You can spend some time each day holding the crab quietly in your hand. Over time it may come to trust you. Always be careful not to startle or drop the crab while you are holding it. Laying on the floor with the crab is a good idea in case it falls. Some people are even able to hand feed their crabs with lots of time and patience.
I happen to employ a hands off crabbing policy. My crabs seem to fair well by being handled less. They are fascinating to simply observe.