Most Russians I've know on a one on one basis were pretty jovial and fun to hang out with. They did thing people were "fake" and "smiled too much" in America though. I told them the American take on reality was as legitimate as their more cynical attitude. It's all in learning about culture and why people are the way they are. Russians tended to be very straight forward and say what's on their mind, and Americans will hold it back. There are pluses for both positions.