I'm looking for a word to describe support that is shown only on a public level; it is declarative but not operational, more like an encouragement. For example, I might support all organizations that deal with deforestation, but I don't give them my money, my time, or anything else. But I will pat them on the back , or tweet my support, or tell the world that I stand behind what they are doing.
I first thought of declarative support, but I couldn't find that phrase on the internet.