Do! I have a couple of prints of Jack Russell Terrier artwork.

Take selfies?

I'll say do not. A few times, but mostly so I can see if my outfit looks okay and not to post online.

Press flowers or leaves?

Do!

History or mathematics?

Mathematics (although shouldn't this be in the "This Or That?" thread?)

Do a long-distance walk (greater than 20 miles)?

*mod note*
Oops. Got confused. Sorry.

Do a long-distance walk? Not sure my knees could take it any more. I did that a few times when I was younger. So no, I would not do.

Go scuba-diving along the Great Barrier Reef?

I would love to scuba-dive along the Great Barrier Reef, so DO.

Study with music on (or does that distract you too much)?

Do. I find it hard to study or concentrate in complete silence sometimes.

Study with other people around?

Do not. I like complete focus, since there is almost always distraction when other's sit around you.

Write down dreams you have?

Do not. I'm lucky now that I can still recognise I was dreaming, let alone remembering any.

Enjoy shopping, or visiting places most on weekdays, whilst most people are in school or work.

Do. Although my school schedule is crazy, I still can find more time to do stuff on weekdays when nobody is around!

Attend community firework events for the 4th of July?

I haven't lately, so I'll say do not. Fireworks shows are quite spectacular though.

Eat a snack before bed?

Do not, at least as a general rule though sometimes I do anyhow.

Go to community band or orchestra concerts?

Do! ...okay it was a community choir and before that the band was an ensemble from out of town but close enough.

Wake up before dawn to watch the sunrise?

Do not, at least not often though I would like to.

Sit and watch the stars come out?