Rabbits are prey animals, so a new bunny's first days should focus heavily on making them feel secure rather than immediately trying to socialize or handle them extensively. Provide at least one enclosed hideout where they can retreat completely out of sight โ this matters more for rabbits than almost any other small pet.
Keep the space at floor level rather than a high shelf or table, since rabbits generally feel safer and more confident with their feet on solid ground. Bunny-proof the area thoroughly: rabbits chew constantly, so electrical cords, baseboards, and houseplants need to be blocked off or removed, since many common plants are toxic.
Keep initial interactions calm and on the bunny's terms โ sit near their space quietly rather than reaching in repeatedly, and let them approach you first. Trust with rabbits tends to build slowly but is very durable once established.