2) Appeal to the emotions of the masses with hot takes on current events.
2.a) Don't make them think too hard.
2.b) Confirm their biases.
3.c) Be mildly witty
3) Sex sells, thirst trap, etc. 3.a)Post open ended topics that invite your lonely followers to respond.
3.b)Ask for feedback on your photos.
3.c)Appeal to white knights
Check out @dvassallo for more info, and search on IndieHackers for how to grow your Twitter audience. I can't post the links right now.