Overacting is carrying out an action with more energy than necessary. Leaving aside the possibility of parody, why would a performer do this? It would seem to be an attempt at highlighting what we are doing, as if we thought that the audience might not realize the importance of what we’re doing, so we make an effort to get the focus. We may succeed in obtaining the other’s attention… while losing their resonance, empathy and connection.
In a duet, the two performers have equal importance. This balance does not imply that they both do the same thing, or that they do different things for an equal amount of time each. Duality pervades the way we perceive reality and often we see one of the poles as positive and the other as negative. However, in a duet no such vision is possible, because both performers are working at the service of the composition. Sometimes it can be difficult to accept that someone has a different way of going about things. It might be useful to approach whatever we are doing together as a duet, letting differences exist and finding the synergy between them.