These seem so incincere, I can't put my finger on why. Just be interested in what they're interested in, same as how to connect with anyone. Let them tell you about things. Thereby establish you are interested in them as a person and are a good listener. And perhaps critically, don't start out with a view to change them - that requires a great deal of trust willingly placed on their behalf which you haven't earned an…
i won’t try to claim it always works but at least for my experience just being someone who is safe for younger people to share their ideas and thoughts with (starting with the “lighter” thoughts) seems to make the foundation for the kids being more willing to ask the tough questions about life on their own or to listen when you do want to share your own thoughts.