Part of worship is lifting our voice to God. "My voice You will hear in the morning, Lord," says Psalm 5:3. "Make a joyful shout to the Lord," Psalm 100. When you sing, send more air through those lungs. When you say Amen at the end of the hymns, lift your voice and shout. Give Him your heart, your mind, your hands, and give Him all of your lungs and voice.
This does two things. First, it gives God more of you. Love Him with all your strength. Second, it gives strength to your brothers and sisters in Christ, as they are encouraged by our common vigor and tangible faith.