Here are some steps that you can take to help you connect with the congregation. The first is to bathe every worship service in prayer. Ask God to connect Himself with the congregation and give you the ability to sense His leading during worship. Then be up beat and positive from the very beginning. Introduce yourself and state your goal for the worship time.
People like to know what to expect.
Secondly, at an appropriate time you may share something personal that God has taught you to bring you to a deeper place of worship and then challenge them to connect more intimately with God. Sharing something personal will allow people to see your heart and understand your motives. Finally, lead from your heart. People can spot a phony from far away. So be real.