The person knows the difference between being upright and moving versus lying down and resting. Both experiences are needed every day to maintain circadian rhythms.
When the person can walk around with direction like following a footpath or walking to a destination such as the bathroom, letting them walk around is very important to them.
When the person has no restrictions on their mobility they are likely to walk incessantly until they are totally exhausted Provide the person with a large level space to walk in. Also provide a few large sturdy armchairs of good height for the person to plonk in when they are tired. Fluids will need to be provided regularly along with changes for pull-up incontinence pads.
Trip hazards will need to be removed. They will likely not be looking out for other pedestrians or traffic. They may also follow others like visitors out of the facility so their safety will need to be considered. Someone else will need to guide them to prevent them from getting lost.
Movement information starts shifting towards the hands in ACL 2.8. They can grasp for about 20 seconds in a reflex-like reaction.
Make sure all grab rails are secure and there are no loose items which the person can trip on.
Forward propulsion is important. If the person is unable to weight-bear ensure they can spend time being pushed around in a wheelchair.