There are many forms of expression in worship. One of which is declaring. As we enter into worship, we declare and confess that Jesus is Lord. We speak of His wonders and power. We acknowledge all the works He has done for us. We give Him praise.
Cheering God reminds me of the fans shouting and clapping to encourage and support their team at a sports stadium. Watching all the fans cheer for their team as the games begin. In the same manner, we applaud God and give Him praises. We excite God through lifting our voice in praise.