Also in the Eastern Rites, the people were often in constant motion, kissing icons, lighting candles, kissing the Gospel book as it was processed through the church, each person crossing themselves, bowing, etc as the spirit moved them.  (and the men leaving to have a quick smoke outside the doors).  Here in the USA most of the Eastern Catholic Churches have pews, as well as the Greek Orthodox churches.   Not sure about the rest of American Orthodoxy.