Why do I finish people's sentences?Are you being helpful or just seizing control?

From the show

Hidden Codes of Conduct

Finishing someone's sentence can be a sign of intimacy or intense impatience. The meaning of this common habit changes depending on who you're talking to and their cultural background. From a sign of engagement in some cultures to a rude interruption in others, we explore the psychology behind this conversational quirk. Neuroscience reveals our brains are wired to predict what comes next, but social rules dictate when we should act on it.