Well, I can't really say they aren't debatable since you're debating them, but I'd say those are among the most important things. Perhaps I need to clarify.
First one there, last to leave: This doesn't mean hang around after someone told you to go home - if that happens by all means go. But you should definitely be the first one there in the morning to preround, look up labs, print out lists, etc, - this is all pretty basic. It is also about willingness - you shouldn't be looking to leave; you should be looking to find additional ways to help the team.
be better than the interns: This doesn't mean "show up" the interns. Never do that. It is a mindset. It means you will aim to be the most prepared, the most knowledgeable, the most organized person on the team. It was also the direct advice from my dept chair before I left for my away.
Get facetime with attendings: This is how you get a good letter of recommendation. In the surgery world, it means you pick an attending to go to clinic with, scrub in on the majority of their cases, basically let them get to know you. It does not mean suck-up.
make sure everyone knows how much you love the program: Again, this doesn't mean sucking up. It must be done intelligently. But it again speaks to mindset - you are there for a month long interview. You need to be "on" the whole time - that means no complaining, don't spend the whole month talking about all the OTHER programs you like, stay positive.