Answer:
Well, this kind of depends on what kind of character you are describing, as well as in what format (just a description or like in a writing prompt..) But mainly what you want to focus on is what they look like. Like, what kind of hair do they have? What kind of clothes are they wearing? You could also describe how they carry themself- are they shy and turn away in conversations or are they loud and engage themselves?
Step-by-step explanation:
Here's some kind of example:
Bethany stood proud, with her dark curly hair in a perfect bun. She walked through the hallway as if it were her place. Her outfit was perfectly matched, but there were stripes and patterns that shown her creative streak.
(this is kind of short but you get it)
As you can see, in a character description you need to use a lot of adjetives, that way we get a lot of information on them.
I hope this helps :)