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. Connecting with the congregation will enable you to take a group to a deeper place in worship. Once you have connected with the congregation and created an atmosphere where they can worship the Lord, your next challenge is to keep all other distractions away. How you transition between songs can either keep people connected in worship or distract them. Too often I talk to people who say their worship leaders are talented but their transitions between songs loose the people's attention or distract from worship.