When you pray to the Holy Spirit and experience shaking in your hands and body, it's important to discern the spirit behind this manifestation. Yes, the Holy Spirit can manifest in powerful ways, but it's crucial to test the spirits as you are told in 1 John 4:1, "Beloved, do not believe every spirit, but test the spirits to see whether they are from God".
The Holy Spirit is indeed a spirit of power. But, in Acts 2:1-4, the Holy Spirit manifestation is clearly described, when they were all with one accord in one place. And suddenly there came a sound from heaven, as of a rushing mighty wind, and it filled the whole house where they were sitting. And there appeared unto them cloven tongues like as of fire, and it sat upon each of them. And they were all filled with the Holy Ghost.
The Holy Spirit is a spirit of power and of love and of a sound mind. So, let's pray together for discernment, "Dear Heavenly Father, in the name of Jesus Christ, we come before you, asking for discernment for our brother/sister. If this manifestation is from You, Holy Spirit, please bring clarity, confirmation, and peace. If it is not, please rebuke and cast out any spirit that is not from You. The Bible says the spirits of the prophets are subject to the prophets, so we take authority over any spirit that is causing this shaking and command it to cease if it is not of You. Father, please fill us with Your Holy Spirit as You see fit. In the name of Jesus Christ, we pray. Amen."