The smaller one of my 2 rescued snakes is constantly pacing its new home (the big fat one just found a corner to sleep [|], , my scaredy cat motley is burrowing out of sight).
From what I read, I think that means she's hungry which is kinda consistent with the previous owner's description that the fat one likes to snatch food away from the small one.
Problem is I also read that I should let the snake settle down in the tank for at least 3 days before feeding.