Upon entering the house of God, our purpose must be to glorify and exalt the name of the sovereign God, and we can do this through songs and praises that express gratitude for what He has done for us. Everything we have must be a point to exalt the name of God.
In the Bible there is a mandate for us to enter through the doors of the house of God:
Enter into his gates with thanksgiving, and into his courts with praise: be thankful unto him, and bless his name.
It is obvious that we should not raise our hands for anything that is sung or said, but regardless of that, we must know well what our purpose is when entering the house of God.