Praise...no not necessarily is it desired.
Belief...yes absolutely it is desired.
God created human beings out of love. He sacrificed Himself for that love and did not spare Himself pain in the process so belief in who He is and how much He has sacrificed for us is a must.
After fully understanding and believing in who God is and God's immense love for us (i.e. only someone who loves/cares for you would submit ahead of time to dying painfully on a cross for 3-6 hours) then you WANT to praise Him for that.
This is just my opinion as a Christian respectfully. I am much more a spiritual person than a religious one so it is my spiritual relationship with God and witnessing Him bringing me through various things (losing my parent at a young age/losing my sibling/suicide of a close friend/homelessness/health issues etcetera) that I can say God is real and I encourage you all to try Him and believe in Him for yourself. No harm in trying. God is real, His sacrifice was real and His love for you is real. He does want you to believe in Him but it is not required that you praise Him because if that was all He wanted then He could easily just create robots to do that all day long but instead God gave us free will to CHOOSE him or to reject him.
Above all God desires for us to have a close relationship with Him because He loves us. Relationship is key not religion. And God also wants us to see our existence in the context of eternal life as opposed to just this short earthly one.