Online social networks are popular habitats for many Web users. Research on activity patterns of individual features of online social networking systems is ongoing. Our approach on the study of these patterns is more encompassing than previous efforts. We have created a modern experimental educational online social network for the purpose of the study of network structures and communication phenomena in these websites. In this paper presented are patterns of activity usage of most classic features of online social networks: friends, private massages, forum, blog, photogallery, comment wall. Activity patterns of these features are compared against each other, also by taking into account the main user attribute.