Forming a Group to Be of Service (San Antonio)

Looking for people who want to meet in person on the weekend to spend two hours or so being kind to other people/serving the community.
We would do things like visit with seniors at underserved nursing homes or senior housing, offer hot chocolate/lemonade and good conversation to people downtown, or volunteer to pick up trash or help the local parks.
We could meet at Hardberger Park on Sundays at 1pm or could pick another starting point and time.