It means having self-control on their action and being aware of them. If you ask a system, it will respond, it cannot choose to not respond (even if the response if "I don't want to response", it still "run", still do the work). If you don't ask a system, it will not respond.
Adjacency is the point of the thread here. Saying "you say X is important to decide if the thing is intelligent/understanding/conscious, so let me just change X in the middle of the discussion and say that X does not matter".
That is exactly my first comment in this thread: I don't care if AI think or whatever, my reaction was about these "counter-arguments" that totally miss the point and make the person who push them ridiculous. If you want to have a counter-argument, you first need to understand the interlocutor, not just spew whatever rebuttal you constructed that answer something unrelated to what the interlocutor brought to the conversation.