I think that 90% of those people who say that they aren't getting any interaction aren't trying hard enough. It sounds harsh, and maybe it is, but as long as you are actively talking to other characters (through comments, aim, etc) I see no reason for a person to not get something going. I've noticed that a lot of the people who complain are the people that never reply back to comments left to them, of if they do, they don't reply back with anything of substance that gives the other person a chance to respond. Interaction comes from conversation and often leads to a friendship which leads to scening.