 At first, Anscombe answers this disjunctively: she identifies several cases which are not intentional, and several other cases that are. If you ask someone “Why are you doing that?”, and they give one of a few types of answers, this establishes that the action is not intentional. Such ways of answering can include 1) “I didn’t know I was doing that.”, 2) “I (merely) observed/inferred that I was doing that”, 3) “I (merely) observed/inferred how my physical movement was caused.” By contrast, the following answers show that the action so described is indeed intentional: 1) an answer that mentions something future (“To end the war”), 2) an answer that interprets it (“Out of curiosity”) , 3) an answer that mentions something past that’s given as the ground for something good or bad for the person at whom it is aimed (“They attacked us first”), or, finally, 4) “No reason” (INT, 24).