Hello Tom!Thank you for submitting your homework today. Kindly take note of the corrections that I made. Thank you! ^^

Tom:I'm fashionable. because I alway try to read a fashion magazine that many models show up.
Correct: I'm fashionable because I always try to read a fashion magazine that many models show up.

Tom:I am not quite humorous. but I'd like to try to joke with my friends.
Because I don't like the calm situation.
Correct: I am not quite humorous but I'd like to try to have fun with my friends because I don't like the calm situation.

Tom: I am open-minded. Because when I encounter the unfamiliar works or
matter.I can easily accept them.
Correct: I am open-minded because when I encounter unfamiliar works or matter, I can easily accept them.

General Comment: Do not end the sentence right away with a period. Sometimes, you can connect them using the conjunctions (because, but, or, and).