Look the person in the eyes. Don't sit on or shake the bed. Don't touch the IV machine or tubes. Limit the time of your visit, don't fatigue the patient. But don't keep looking at your watch.
Most patients appreciate being given a booklet, if they are able to see it.
If distributing literature, be sure to read it first yourself, and make sure it is acceptable for the patient before giving it. Express love, and genuine interest in the patient. The patient will generally like to discuss their sickness and other needs, if asked. You should listen, more than speak. Don't belittle the patient's sickness.