I have said it before, but you really should find a sponsor to pay you for your time and materials. The seniors usually are on a fixed income and cannot afford to pay for the joy of painting that you are offering. I began working with the seniors through the city parks and recreation department (under the recreation part of it) but you could also talk a retirement community into supporting you or an convalescent hospital/home. Check around to see who might be interested in starting a painting class type of activity on a weekly or monthly basis. If you just jump in and start classes paying for the paper and materials yourself on a volunteer basis, the authorities may feel that they shouldn't have to pay or help out with something you were willing to do for free. After you have funding and advertise that classes will begin on a certain date and time, make sure you are there on time. Seniors don't like having to wait and will go find something else to do. After you are established as coming regularly, they will be there faithfully waiting for you. Create simple project paintings that even the most unskilled painters will feel they accomplished something fine and fantastic. You don't want them to go away feeling that they are failures. They won't return if that happens. I tried not to make it too simplistic but also not too complicated. I also drew out the picture for them on the paper before I came. They don't want to learn how to draw; they just want to paint. This why I began using stencils, because I was drawing dozens of the same picture over and over again each week for the seniors to paint. Finally, enjoy them and their conversation. I found with little provocation they will tell you their life story. Many times it is fascinating.