What is the difference between the tense future and future perfect?

Messalla frowns at the wide circular cover, for a moment returning to his own fussy world.

You need to write a 1600 word essay about how to make a proper discord server, i will supply a outline that i have made. 1. make the server a. go create server b. make a name c. select a picture to use d. select your region e. press create 2. inviting people a. invite people you have on discord b. if no, copy link and add never expire c. optional to do later 3. make channels a. decide what you want this to be about "list options" b. make channels around your topic "one already made" c optional add voice chats "one already made" 4. make roles a. make roles for moderation "other roles for trusted people to you run server" b. optional make roles for other people "explain in essay" 5. make rules a. make rules for everyone to follow b. make rules for people higher in ranking to follow c. inform mods on how to enforce rules 6. optional add bots a. bots make life easy b. makes moderation easier to enforce 7. listen to community a. your community/people in your server are best to listen to "explain in essay" b. change things that your community wants to be modified. you need to go into detail about almost every line in order to reach the 1600 words.

When lawrence saw the posters for the circus hanging on the bulletin board, as he swept up the trimmings at slim's barbershop, he knew he would be taking his little cousins. they loved animals, and he was looking forward to seeing the smiles on their faces as the circus performers amazed them with their stunts. but sweeping up hair clippings didn't pay a whole lot. lawrence spent 45 dollars just getting tickets. but it was worth it to see his cousins' faces. the day finally came and everyone was excited as they walked into that big circus tent. but lawrence soon realized that he and his cousins would be thirsty and hungry. as they sat in their seats, the drink vendor walked by selling beverages. desperately thirsty, lawrence asked him how much a lemonade would cost, and the drink vendor said, "eleven dollars each." lawrence replied, "oh, that's it? just eleven dollars? what a great deal for one cup of lemonade. that's totally worth it." the drink vendor walked away. which type of irony is used?