I think enjoying each other in a creative way is usually a result of when you're doing something that might be problematic - might be a little difficult to uncover. I've done it once in a stage production; we came in for two days and, just as an experiment, the director had us reading each other's roles. You hear another voice interpreting a line that maybe you were having trouble with. It can be very helpful. But we weren't really in the kind of situation where that was necessary.