It honestly depends on the time of day, usually between the hours of 18:00 and 00:00 on weekdays, that's when the activity starts to rise, and usually stays that way for a while. High-peak activity is mostly seen on weekends, though. I usually just drop a few questions in the chat to try and start a conversation. Usually people don't make social-groups, but I believe you will have the best luck socializing in The Grounds, as that's where people tend to be the most. If you ever see me in-game (I'm usually on Buffy, sometimes Ginger), then I'm open for chat! I suppose you need to be the first one to make the move, unless there are conversations going already, then perhaps you can join in one that you find interesting!