Even with all the large SA/CA cichlids I've owned, the most personable cichlid I've had was actually an African. My paratilapia polleni was very interactive and playful. Alot will also depend on how the fish are kept and raised. My male RD for example will have nothing to do with me when it's kept in a large community tank, put it into a smaller tank by itself and it becomes quite the glass banger. Same goes with two male trimacs I currently am raising. The one in a community just is looking for food, while the one by itself is more interactive.