We can't manufacture worship - it's a natural response to seeing God. Read part 1 of this series here.
Anna (Luke 2:36-38) - After seeing Jesus, she gave thanks to God and spoke about Him to others. She was already worshiping God day and night in the temple, but there was still more to come for her. You never reach the end of God, there's always more of Him to see. It's easy for apathy to set in when we have been a Christian for a while, and we think we're happy where we are. Instead, we need to be constantly asking God to show us more of who He is and what He's done.