This article shows that attending the evening service on the Lord's Day is not simply a matter of personal choice. The second service is important, because in both services we are given a foretaste of glory, are fed from the Word, are prepared for our eternal home, and are encouraged by the Holy Spirit and the fellowship of God's people.
Can you raise your hands during worship service? This article shows that the raising of hands in ancient times was to show attention to, submission to, and dependence upon some deity or authority figure. If it is used in this way during the worship service it is acceptable. Any other usage should be discouraged.