Guidelines to Fixing a Shy Hermit Crab?

sometimes you just get a shy crab ... you should get a friend or two for the "nameless" (evil crab owner - just kidding :O) hermit crab ... when picking out new ones, pick up one that is in his shell and if he comes out immediately, that is a good crab to get ... if you set the crab down in a place different from where he is being kept at the store and he immediately comes out, that s a good crab to get ... and i have found putting them in lukewarm water outside of their tank will get them kinda frisky ... like shallow water, less than half an inch ... and even my shyest crabs will come out and motor about in the water ... and pick a name already could ya :O)