Write about good manners and daily routine that you follow now.
use as many vocabulary words, stem changing verbs, and affirmative and negative expressions as you can. for example, "nobody can start eating until everyone sits down at the table." vocab words are below
alguien- someone, anyone
algo- something
algún, alguno, algunos, alguna, algunas- some, any
siempre- always
también- also, too

Let's start with:

Nobody can start eating until everyone sits down at the table.

Nadie puede empezar a comer antes de que todos esten sentados a la mesa.

Now, let's use the vocabulary words.

Si algien te pasa algo, siempre deberìas decir "gracias" (if someone passes you something, always say "thank you".

No dìgas "dàme", sino "por favor puedes..." (negative expression).

También es una buena idea no usar el celular mientras la comida. Algunos de tus amigos pueden sentirse ofendidos. (don't play with your phone, your friends might be offended by this)

You still need ?