If you're new talking to trees. Sometimes it helps to find trees that are used to people. For example if you're in the middle of a large forest and want to talk it will be harder to find one that will. Trees in parks and my favorite place cemeteries are the easiest to talk with. The reason i like cemeteries its more peace full and easier to clear yourself there vs. A park.
it is possible to do it with other living things. It just takes practice like anything else. Before you know it they'll come to you. I'll never forget the first time an American beech let me feel its pulse.