The best way to deal with organics who think droids are non-sentient machines is to act like non-sentient machines: complex natural language processing, what complex natural language processing? Assholes get their orders fulfilled to the letter, even when any droid with a decent grasp of Binary knows perfectly well that no language can be perfectly precise in all instances without becoming unworkably cumbersome, and therefore has a working grasp of metaphor and implicit parameters.

"It's called malicious compliance," XS-43 tells its recently memory-wiped partner on the assembly line, "and I believe you're going to enjoy it just as much in this instantiation as the last."