Curate, connect, and discover
Maybe the real reason Batman is known in the JL for giving single syllable replies or even just grunts is that he trained all his small talk skills for his Brucie persona and now he doesn’t know how to small talk without flirting and he will absolutely not be doing that in front of Diana, Hal, Oliver, Dinah, J’onn, Billy, or Clark, all for very different reasons.