He might get angry. The scar is a symbol of his failure, so seeing it could trigger his rage.
In some fanfics, he may become obsessed with the scar. He might see it as a key to understanding Harry's power better, and so he would start to study it closely, trying to find a way to use it against Harry or nullify its effects.
He might be initially shocked. Snape has a complex relationship with Harry, and seeing those scars which are a mark of Harry's past and his connection to Voldemort could stir up a lot of mixed emotions in Snape. Maybe he would feel a pang of guilt, as he has some role in Harry's life due to his connection with Lily.
Well, Hermione is known for her intelligence and rational thinking. When she sees Harry's scars, she might first try to analyze them. Maybe she'd wonder about the magic that caused them, and if there are any lingering effects. This could lead her to research more about dark magic or the spells that left those marks. At the same time, she'd also have an emotional response, perhaps feeling a bit of anger towards those who hurt Harry.
He could be stunned. Draco has probably heard about Harry's scars but seeing them in person is a whole different thing. It might make him speechless for a moment.
She might be shocked at first. Fleur is used to beauty and perfection, and Harry's scars are a sign of his many battles and hardships. So she could show a moment of wide - eyed surprise.
Well, Snape's reaction would likely be a complex one. He might try to hide his true feelings. Since he has always been a bit of an enigma. The scars on Harry are a visible reminder of his connection to Voldemort. Snape may feel a sense of responsibility towards Harry, whether he wants to admit it or not. His reaction could range from a momentary lapse in his usual cold facade to a more long - term change in his attitude towards Harry, as he contemplates the significance of those scars.
He might be shocked. Snape could be taken aback by the depth of Harry's emotions and experiences in his memories.
Sirius might immediately rush to Harry and give him a big hug. He's like a father figure to Harry, so physical comfort would be his first instinct.
She might be shocked at first, but then show great empathy. After all, those scars are a testament to Harry's difficult past.
Sirius would probably be shocked at first. Then, he'd likely feel a deep sense of sadness and guilt. He might think that he should have been there more to protect Harry from getting those scars.
She would probably be very sympathetic. Molly is a motherly figure, so she might immediately reach out to comfort Harry.