the internet is full of questions

1. I am taking a class with professor A. He invites professor B to give a guest lecture. Then, on the homework assignment, prof A sets a problem based on prof B's lecture - a problem proposed by prof B. Only, last year I took a class from prof B and we covered this topic, and prof B is lazy so this question is one that was already assigned to me - and I typed all the homework for that class, so I still have my response from last time. It is ethical to copy and paste: yes/no/only if I note that that's what I've done.

2. I'm going to this conference on Saturday. It's required for one of my classes. It's a topic that I am interested in but not super knowledgeable about, and I'm an undergrad in a different field, so my goal is to sit in back, pay attention, and not embarrass myself. I don't need to network or impress anyone, but I would like to be sort of respectable-looking. What do I wear? Pictures or descriptions of clothing items I already own upon request.

3. Twice in the last week I've found myself looking for a particular word, and I can't work out what it should be. I need a word that describes a man that presents with many of the stereotypical qualities of a gay man, but I'd prefer it not say anything about sexuality, and that it have neutral or positive connotations. I would use 'camp', but that carries a connotation of performance of artifice that I'm not wild about for the contexts I want to use it in. For the parallel case of a woman, I might use 'butch'. Anyone got any suggestions?

4. I went to the MFA on Saturday with my mom while she was in town. The theme of our trip was 'creepy infants' (or possibly 'things Laura hates about the MFA poor display decisions on the MFA's part, in Laura's opinion'). I was going to write up some things about my Totally Uninformed Opinions About Art, but it loses something if I can't link to the works of art I'm talking to. This wouldn't be a problem, but we have to add 'their website' to the list of things I hate about the MFA, so it might take a while to pull together. Seriously, if I look up a work of art and you tell me whether it's on display and where, why can't I get a list of everything on display in a certain room, rather than having to look through every fucking painting, on a website that takes a minute and half to load each page, in order to find the one I want?