Cracked the first step now, thanks Luthorien. I don't understand the third yet either, and I'd been working with the idea that all 3 alluded to "pop".
I understand the numbers now, and am looking for "attributes".
But attributes of the numbered items, or of their namesakes? Found some interesting but wrong possibilities: All's fair in love and war; blind (l***, j******, and (partially) O***).