attention, same as english, but careful with pronunciation.
To warn someone, or say "look out!" in French, say Attention!
Fait attention a ton frére
faites attention à mon coeur
Like french schools.
it would look ... is translated "ça aurait l'air ..." or "ça semblerait ..." in French. It would look odd > ça aurait l'air bizarre
you have to be more specific. if you mean attention as in "look out" then it would be "achtung". But if you mean attention as in "attention, please!" it would be "Bitte um ihre aufmerksamkeit!"
Should: devoirIn a sentence such as "it should be" it would look like this: "le ce devrait être"
I look like is "je ressemble à ..." in French.
Like french schools.
Don't know how the native French speakers would actually say it, but I would guess at: C'est la façon dont on ressemble, avant (de...)
They look pretty much like anyone else.
Usually capital letters in french aren't written with an accent (`). Now if you meant in cursive, it would look like a backwards 3.