Some classmates might be understanding. They could have been taught to be inclusive and kind, so they don't make a big fuss. However, there are also likely to be some classmates who are curious or even a bit mean. They might tease the child, not fully understanding the situation.
Well, in fanfiction, his classmates' reactions can vary widely. There are those who are his friends and they would be supportive. They might cover for him when he has to run off to be Spider - Man. On the other hand, there could be classmates who are envious. They might spread rumors about him or try to expose his secrets just out of spite or envy. And then there are the classmates who are just indifferent. They don't really care about Peter's secret life and just see him as an ordinary classmate most of the time.
His classmates would probably be very concerned. Some might immediately run to get the teacher or the school nurse. Others might gather around Peter, asking if he was okay and trying to comfort him.
He would probably be quite amused by some of his past antics. For example, his constant pranks on Iruka-sensei. But at the same time, he'd also see the pain he carried from not having his parents and realize how that influenced his actions. He might react with a bit of regret for some of the stupid things he did out of loneliness, but also be glad that those experiences made him who he is today.
Some of Percy's classmates might be in awe of Annabeth. She's smart and confident, so they could be a bit intimidated at first. But then they start to admire her for her knowledge.
Williams in the '600 lb life williams story' is likely a person who is the focus of that particular story within the context of the '600 lb life' series. He might be someone who has been living with obesity at 600 lbs and is either on a journey to lose weight or is facing various challenges associated with his weight, like health problems, social isolation, or problems with mobility.
There are so many Williams out there. It could be a fictional Williams. For instance, in a storybook, there might be a Williams who is a wizard with magical powers. He uses his powers to protect his village from evil forces.
Peter's classmates would react in different ways. The ones who are fans of the Avengers would be over the moon. They'd be shouting out their favorite superhero names. But there might be some who are a bit scared, especially when they see the Hulk or Thor with their big and imposing figures. And then there would be the ones who are just plain curious and would start asking a million questions.