Describing her body language is also key. Her fists clenching, her face turning red, or her pacing back and forth. If she's really furious, she might even stomp her foot like she did when she was younger and frustrated. All these physical signs can show her anger well.
Showing how she reacts to the situation afterwards can also convey her anger. If she's so angry that she decides to take matters into her own hands, like starting a campaign to change a rule or confronting someone directly without hesitation. This shows that her anger is not just a passing emotion but something that drives her actions.
The author can use physical cues. For example, Kuroko might clench his fists tightly, a rare display of emotion from him. His normally calm blue eyes could narrow and become more intense. Another way is through his dialogue. He could speak in a sharper tone than usual, with shorter, more forceful sentences.
Well, one way is through exaggerated facial expressions, like big frowns and bulging eyes.
The author can describe his physical appearance. For example, mention his pale face, dark circles under his eyes, and a slump in his posture. These details can quickly convey to the readers that he is exhausted.
The author can use strong dialogue. For instance, having Tony shout out angry words with a lot of force and passion. Words like 'I've had enough!' or 'You'll pay for this!' can quickly convey his anger. Also, the use of expletives (if appropriate for the rating of the fanfiction) can enhance the sense of his fury.
One way is through detailed descriptions of how she experiences the world without relying on sound. For example, she might be more attuned to vibrations or visual cues. The author could describe how she reads lips with great intensity and how she uses magic in unique ways to compensate for her lack of hearing, like a spell that alerts her to approaching people through a visual signal.
He might be confused at first. Harry isn't always the quickest to understand Hermione's motives right away. So he could just stand there, looking at her with a puzzled expression on his face, not really knowing what he did wrong.
Writers can use strong body language descriptions. For instance, clenched fists, furrowed brows. They can also show his anger through his dialogue, like using short, sharp sentences. Another way is to describe his internal thoughts when he's angry, how he's seething inside but trying to control it.
She might give him cold stares in class. Hermione is not one to shy away from showing her emotions through her expressions. So, every time Snape is in her line of sight, she could fix him with a withering glare that clearly shows her displeasure.
He might use sarcasm. Stiles is known for his quick wit and sarcastic remarks. He could say cutting things to Jackson to show his anger, like 'Oh, look at Mr. Perfect Jackson, as if the world revolves around you.'
One common reason is Hermione's over - protectiveness. Sometimes she tries to control situations too much, which can make Harry feel suffocated and thus angry. For example, in some fanfictions, she might try to stop Harry from taking risks in a dangerous mission, which he sees as her not believing in his abilities.