Do you have a cot set up? I start putting bubs in the cot with the mobile on for 5 mins. Gets them used to the big cot. Take bub out for a walk in the arvos. Sing to them at nappy change time. My babies always liked to lie on the change table and watch the mobile (never leave them alone of course). Sit down and read. Do floor time with classical music on. Mostly talk to them and show them facial expressions.