I had the same experience when I attended a different church. The singing and arms in the air kind of put me off at first. In thinking about it I realized that my JW training had taught me that any expression of emotion was wrong. The JW religion stresses "knowledge" and "rationality" (even if the beliefs are ridiculous they are still reached in some sort of "logical" order). During last conversation I had with my mother when we discussed her decision to shun me, I asked what it was about the JW religion that appealed to her. She said it was the "accurate knowledge" and the "truth" of doctrine. Right then and there I realized that we were on different wavelengths. To her Christianity was about doctrines and to me Christianity was about how you treat other people. I now believe that there is nothing wrong with the display of emotion in religion.