I am cheerful and deliberately straightforward.
Some people think they're playing 3d-chess with relationships. I play marbles on the board. Not because I couldn't enter the mindgames, but because they have no interest once you abscond from them: it's way more comfortable and simple. And it confuses the shit out of the overthinkers/manipulators, which is endlessly entertaining.
Try it once: when someone is offering you something sarcastically or as an attempt to guilt trip you into the reverse and the thing offered is exactly what you want, accept it graciously, and end the conversation. You can see the little veins bulging on their face, but they're stuck by their own words...