Take your client out for a walk each day and their dog too. And have scents, spices, & music that is familiar with their culture  out a few hours during each day, it breaks the day up with pleasantness for everyone.  Include your client in light conversations, it enables them to be engaged  and feel safe, occasionally bring little gifts, and leave treats in near unexpected places.  In the native american community people often  adopt an elder person and come to visit as family and paying it forward and keeping the community strong.

One of the hints I learned is never to argue with them. They know what stage of life they are at in any time frame. They must always be right.

The best thing we came across to help us out with a parent who has this was a support group in our local church.

Bonnie Ruhoff said:
They know what stage of life they are at in any time frame. They must always be right.

 Oh boy...this is SO true!  I like the way you worded it, though...your thoughts traveled from my head to my heart.  It has changed my behavior, which is the only thing I can change around here!  Now, where's that duct tape, so I can keep my lips sealed?

The one thing I was most proud of in regards to my participation in my mother's life who had dementia, was about twice a week I would take her for rides through the country.  We would start at McDonalds, get a large strawberry milkshake, then I would travel back roads that would circle around lakes or climb into mountains...inevitably something of interest would flash before us, deer, wild turkeys, horses, cows, goats, beautiful scenery.  The thing was, it was a pleasure for both of us.

In addition, I always had a  personal goal of my own on these excursions like eventually getting to a store where I needed something.  Sometimes mom would wait in the car, or sometimes she would sit on  a bench watching the bustle of customers inside the store.  I often brought back a little block of cheese with crackers and she would munch happily on our return trip back to her assisted living home.  My love for my mom deepened with these trips. 

The beauty of these excursions is there is no need to feel you have to engage your loved one while you are with them.  The passing scenery is the engagement. Conversation that does arise is usually effortless because my mother's concerns were brought up within the flow of her stream of consciousness, not mine.  She would talk for awhile and eventually meander off to view the scenery or sip her drink.

I take care of my mom full time. I take my mom out with me when the weather is nice we live in Arizona. The weather is nice here most of the time.  When  it's cold outside I'll do the cooking. Mom will look outside at the cars and people sometime show underlying magazines. When it's nice out I'll take her to the senior citizen place and have lunch with her and she enjoys talking and seeing everyone there. I keep her busy I take her to the malls I take her out to eat. I take her to the tailgate parties the football games. I'll take her to the Kingdom Hall where everyone loves to come up and visit with her and she really enjoys it.  I take care of my mom 24 hours a day. I had her in a Skilled Nursing Facility also known as a nursing home she got three bed sores it took me a over a year to get rid of them. I promise I would never send your back I'm so thankful she doesn't have any bed sores yes I do get up and turn her every couple of hours at night keep her clean it's a full-time job.